Physics question and answers for December 12, 2023
- Q A circular loop of radius r carrying a current i is held at the centre of another circular loop of radius R r carrying a current I The plane of...
- Q 3 Current in primary coil of a mutual inductor is 2 A and is increasing at the rate of 3 A s If mutual is 4 H find flux and...
- Q 14b A small loop of area 8 mm is placed inside a long solenoid that has 854 turns em and carries a sinusoidally varying current I of amplitude 1 28...
- Q 4 13 Two circular coils X and Y having equal number of turns and carry equal currents in the same sense and subtend same solid angle at point O If...
- Q 4 31 Determine the magnetic field at point P located a distan x from the corner of an infinitely long wire beant at right angle as shown in figure 4...
- Q A magnet of magnetic moment M oscillating freely in earth s horizontal magnetic field makes n oscillations per minute If the magnetic moment is doubled and the earth s horizontal...
- Q um force s motion the form a and b ough the A charged particle of mass m and charge q enters along AB at point A in a uniform magnetic...
- Q Q25 A 1 0 m long wire carrying a steady current of 1 56 A is lying along the x axis as shown in Figure 10 The wire has a...
- Q ths 1 A current carrying wire is placed in the grooves of an insulating semicircular disc of radius Ras shown The current enters at A and leaves at B Determine...
- Q 2iB A conducting ring of mass 2kg and radius 0 5ms placed on a smooth horizontal plane The ring carries a current of 4A A horizontal magnetic field of 10T...
- Q 17 The magnetic induction at the centre O Fig is 3 3 l I 8a 8b 8 2 3 1 HI 8a 8b 3 l l 8a 8b 17 3...
- Q Question No The path of a charged particle entering in a uniform magnetic field making an angle 60 with the field is O Circular O Straight O Elliptical Helical
- Q A magnetic field is produced and directed along y axis A magnet is placed along x axis The direction of torque on the magnet will be O In the x...
- Q A non conducting thin spherical shell of radius R has uniform surface charge density o The shell rotates about a diameter with constant angular velocity w Calculate magnetic induction B...
- Q 2 50 A regular hexagonal loop of side a is formed b uniform wire A current flows into it as shown magnetic field at the center C of the hexagon...
- Q 242 5 A disc of radius R rotates with constant angular velocity about its own axis Surface charge density of this disc varies as o ar where r is the...
- Q A battery is connected between two points A and B the circumference of a uniform conducting ring of radius r and resistance R One o the arcs AB of the...
- Q Figure 35 E9 shows a part of an electric circuit Th wires AB CD and EF are long and have identica resistances The separation between the neighbourin wires is 10...
- Q A square loop PQRS carrying a current of 60 A is placed near a long wire carrying 10 A as shown in figure 35 E10 a Show that the magnetic...
- Q 4 52 A closely wound coil has a radius of 6 00cm and carries a current of 2 50A How many turns must it have if at a point on...
- Q hiform wire of mass 10 kg cm is held at rest in a horizontal position without any support by placing it in a uniform perpendicular magnetic field The wire is...
- Q Nonuniform displacement current density The figure shows a circular region of radius R 3 00 cm in which a displacement current is directed out of the page The magnitude of...
- Q 20 The horizontal component of the earth s magnetic field at a given place is 0 46 and the angle of dip 1s 30 Calculate the value of i vertical...
- Q Consider a wire frame shown in figure The wire frame is made by joining two equilateral triangle of side length 1 m It is placed in uniform magnetic field 8...
- Q Two concentric circular loops of radii r and 12 carry clockwise and anticlockwise currents i and i If the centre is a null point i i must be equal to...
- Q 1 A straight wire of length 0 5 metre and carrying a current of 1 2 ampere is placed in a uniform magnetic field of induction 2 tesla If the...
- Q A coil of single turn is wound on a sphere of radius R 1 m and mass m 2 kg The plane of the coil is parallel to the plane...
- Q 2 1 A conducting rod of length L m is carrying a current I 1A as shown in the diagram It is made to move in a circular path of...
- Q wo very long straight and parallel wires carry steady currents I and respectively The distance between the wires is d At a certain instant of time a point charge q...
- Q A circular coil is made from a wire of length 1 m When a current A passes through it its magnetic moment is Am 4T m 16 Am T 1...
- Q A long straight wire of radius R carries a steady current I The current is uniformly distributed over its cross section 2a The magnetic field at a distance from its...
- Q A ring of radius R and mass m is uniformly charged with charge Q It is rolling purely as shown A uniform magnetic field of magnitude B is present perpendicu...
- Q The magnetic force on a current carrying semi circular loop moving in a transverse magnetic field as shown in the figure will be X X X X BIR 2BIR 4BIR...
- Q The figure below shows a current loop having two semi circular arc joined by two radial lines The magnetic field at O is Hol 2R Ho 4R Hol 8R 2...
- Q 4 none of these The magnetic susceptibility of a paramagnetic 7 substance at 73 C is 0 0060 then its value at 173 C will be 1 0 0030 2...
- Q A charge q moving with velocity vi enters a region of magnetic field B and electric field E If Eo Bovo then motion of charge particle will O Uniform circular...
- Q Magnetic Effect of Current fe n un face fay for alle an find the Magnetic field intensity L at the t o for CO B 1 a Ans a 2...
- Q A very long wire ABDMNDC is showr figure carrying current I AB and BC parts straight long and at right angle At D w forms a circular turn DMND of...
- Q A particle of charge q 1 6 x 10 19 C and mass m 1 6 x 10 27 kg is projected from the origin with a velocity v 1...
- Q If a charged particle of charge is travelling with a velocity v in a magnetic field B then the force that that charged particle feels is given by F qvx...
- Q Figure 1 A Y is positive and X is negative B X and Y are at the same potential C X is positive and Y is negative f H 4...
- Q 5 Two long straight parallel wires are 1 00 m apart as shown The wire on the left carries a paper current I1 6 00 A into the plane of...
- Q 14 20 cmf Figure 3 20 cm 45 10 cm 20 cm 13 3 A circular loop of radius 10 cm and three long straight wires carry currents of I...
- Q 14 20 cm Figure 3 45 10 cm 20 cm 20 cm On 2 3 A circular loop of radius 10 cm and three long straight wires carry currents of...
- Q e 1 magnetic force on a proton to the right to the left upward downward into the page out of the page magnetic force on an electron to the right...
- Q Difference between Biot Savart and Ampere s Law
- Q d e 100 magnetic force on a proton to the right to the left upward downward into the page O out of the page magnetic force on an electron to...
- Q Can a charged particle move through a magnetic field without experiencing any force If so how If not why not At any point in space the electric field E is...
- Q Consider an infinitely long solenoid with N turns per unit length radius R and carrying current 1 t a cos wt where a is a constant and wo is the...
- Q A negative charge is given to a non conducting loop and the loop is rotated in the plane of paper about its centre as shown in the figure The magnetic...
- Q A wire of length 500m at a height of 20m above the surface of earth is carrying a current of 50A The current is flowing in the south north detection...
- Q A rectangular loop of sides 6 cm and 2 cm with a small cut is moving out of a region of uniform magnetic field of magnitude 0 4 T directed...
- Q 3 2 0 In figure there are two concentric coils in perpendicular planes carrying equal currents Magnetic field at centre is B If current in one coil becomes zero then...
- Q A metallic pendulum if oscillating in a uniform magnetic field directed perpendicular to th plane of Oscillation then it will a slow down c remain unaffected b d become faster...
- Q A B C D A B Column I Magnetic field lines Magnetic field lines within the magnet Magnetic field lines outside the magnet Magnetic field inside a tightly wound long...
- Q A loop of irregular shape of conducting wire PQRS as shown in figure placed in a uniform magnetic field perpendicular to the plane of the paper changes into a circular...
- Q A semicircular wire of radius r carrying current 1 is placed in a magnetic field of magnitude B The force acting on it 1 Can never be zero 2 Can...
- Q 22 A circular loop of radius R is kept in a uniform magnetic field pointing perpendicular to plane of figure when the current I flows in loop the tension produced...
- Q 19 If the electric field and if magnetic field are mutually perpendicular to each other then a charged particle would move undeflected if 1 v E B 2 v B...
- Q Q23 The force between two parallel wire A and B carrying current is 0 004N m The conductors are 0 01m apart If the current in conductor Ais twice that...
- Q A very long straight wire carries a current 1 At instant when a charge Q at point P has velocity v as shown the magnetic force on the charge is...
- Q A long straight conductor is carrying a current of 20 A as shown in the figure At a distance of 5 cm from it a square loop PQRS of side...
- Q Two metal strips each of length 1 are clamped parallel to each other on a horizontal floor with a separation b between them A wire of mass m lies on...
- Q 20 Two electrons are forced to more in opposite direction on two parallel lines separated by 2m Find electric force between them where separation between them is minimum 2 m...
- Q 2 5 In a factory boxes are circulated in a moving belt which is inclined as shown in figure The belt is rotating at 625 constant speed A particular box...
- Q If the magnetic field is denoted by the right hand fore finger and the induced current denoted by the middle finger the thumb finger denotes the direction of motion of...
- Q A conducting rod shown in figure rotates about point Cas pivot with constant frequency of 5 rev s What is potential difference across its ends 80 cm apart due to...
- Q A ring of radius R and charge Q is place d as shown attached image if a charg e q of mass m is initially at point A the n...
- Q A rocket zooms past the earth at v 2 0 x 10 m s Scientists on the rocket have created the electric and magnetic fields shown in the figure Figure...
- Q A uniform charged rod of specific charge a is placed within a ideal solenoid with direction perpendicular to axis of solenoid Mid point of rod is at center of solenoid...
- Q A wire of length 4 cm is placed inside t he solenoid near the centre at certain a ngle with the axis of the solenoid The w ire carries a...
- Q A long straight wire of radius r carries a current i and is placed horizontally in a uniform magnetic field B pointing vertically upward The current is uniformly distributed over...
- Q Current lo flows through the solenoid of length L havin g N number of turns when its connected to DC A charged particle is projected perpendicular to magnetic field of...
- Q A long straight wire carrying current I and a rectangular frame with side lengths a and blie in the same plane as shown in the figure The mutual inductance of...
- Q A thin diamagnetic rod is placed vertically between the poles of an electromagnet When the current in the electromagnet is switched on then the diamagnetic rod is pushed up out...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!