Physics question and answers for December 07, 2023
- Q 1 A rectangular coil 400 turns dimensions 0 1 m X 0 2 m is rotating in a uniform magnetic field B 0 2 T At t 0 s the...
- Q A generator feeds power to an infinite bus through a double circuit transmission line A 3 phase fault occurs at the middle point of one of the lines The infinite...
- Q A magnet is made to oscillate with a particu frequency through a coil as shown in figure The time variation of magnitude of emf generated across the coil during one...
- Q Figure shows cross section view of infinite cylindrical wire with a cavity current density is uniform jok X A magnetic field inside cavity is uniform B magnetic field inside cavity...
- Q as shown in figure Match the following 1 1 2 20 Q i 152 2 AR 450 Table I A Magnetic field at P B Magnetic field at Q 1...
- Q A wire bent as shown in fig carries a current i and is placed in a uniform field of magnetic induction B that emerges from the plane of the figure...
- Q An electron at point A in the Figure has a velocity v 10 ms Then if e 1 6 x 10 1 9 C AB 10 cm and m 9...
- Q An infinitely long conductor is bent into an L shape as shown in Figure below If a direct current of 5 A flows in the conductor find the magnetic field...
- Q C 2 1 4 21 Figure 4 220 shows a charged particle of mass 2g and charge 5 C enters a circular region of radius 10cm in which there is...
- Q 24 A regular tetrahedron frame is made up of homogeneous resitance wire of uniform cross section Current I enters vertex A through a long straight wire directed towards the centre...
- Q There are two coils A and B as shown in figure coil B is fixed A current starts flowing in B as shown when A moves away from B and...
- Q A magnetic needle is free to rotate in a vertical plane which makes an angle of 60 with the magnetic meridian If the needle stays in a direction making an...
- Q horizontally and is free to rotate about its axis as shown in the figure A strong magnet is held vertically at a point above the disc away from its axis...
- Q 4 58 Find the force experienced by a pole of strength 100Am at a distance of 20cm from a short bar magnet of length 5cm and pole strength of 200Am...
- Q Assertion A The Coulomb force between two points charges depend upon the dielectric constant of the intervening medium Reason R Coulomb s force varies inversely with the dielectric constant of...
- Q 4 41 A long straight wire along the z axis carries a current I in the negative z direction The magnetic vector field B at a point having coordinates x...
- Q A long straight wire carrying a constant current creates a magnetic field around it The magnetic field strength is measured with a magnetic field sensor at varying distances from the...
- Q When the two magnets are moved perpendicular to plane of coil as shown then ares a emfis induced b Induced current flows from A to Balong the coil when A...
- Q of 10 4N m is required to hold a magnet at 90 with the horizontal component of the earth s magnetic field Torque required to hold it at 30 is...
- Q A cyclotron s oscillator frequency is 10 MHz If the radius of its dees is 60 cm what is the kinetic energy of the proton beam produced by the accelerator...
- Q A current carrying coil is subjected to a uniform magnetic field The coil will orient so that its plan becomes O O inclined at any arbitrary angle to the magnetic...
- Q Statement 1 The magnetic field on the axis of a solenoid is non uniform Statement 2 When a charged particle is projected along the axis of current carrying solenoid the...
- Q A particle of mass m and charge q enters a region of magnetic field with speed v as shown in the figure If collision of particle with wall is elastic...
- Q A hollow cylindrical wire of inner radius a and outer radiu b carries current i as shown in figure If the current density is uniform across its cross section the...
- Q Two parallel long straight conductors are placed perpendicular to a metre scale in same plane at the 2 cm and 6 cm marks They carry current and 3 respectively in...
- Q A rod of length 2a is free to rotate in a vertical plane about a horizontal axis O passing through its midpoint A long straight horizontal wire is on the...
- Q Current flows in a cylindrical conductor of radius R with uniform current density J over it s cross section A long R cylindrical cavity of radius is made in it...
- Q The space has electromagnetic field which is given as B B k and E E k A charged particle having mass m and positive charge q is given velocity vi...
- Q i Two small and similar bar magnets have magnetic dipole moment of 1 0 Am each They are kept in a plane in such a way that their axes are...
- Q i AiA small fixed current carrying circular coil of 10 turns carrying current I having radius r lies in a horizontal plane at centre of a square loop having current...
- Q 4 8 Consider a wire carrying a steady current I placed in a uniform magnetic field B perpendicular to its length Consider the charges inside the wire It is known...
- Q a Irms lo c Irmis 10 T To are related as 1994 b Irms 2 10 d Irms 1 2 1994 68 An series L C R circuit is connected...
- Q current carrying wire AB with current i is placed as shown in figure Find the magnetic field at orig Y 0 01 Molo TO 0 49 olo 0 3 A...
- Q A magnetic field B Boj exists in the region B a x 2a and B B in the region 2a x 3a where B is a positive constant A positive...
- Q 36 A bar magnet is oscillating in a magnetic field and its frequency is 10Hz If another identical piece of brass be placed over that magnet the frequency of that...
- Q Please explain the lines in the brack ets in detail in the picture attached How is the principle of relativity relat ed to faradays law even if the charges are...
- Q A wire of fixed length is bent in the shape of a circle of single turn If a current flows in the circular loop then the magnetic field at the...
- Q B C 1 k in a region of space between x 0 to x L as shown in figure A particle of mass m and positive charge q enters in...
- Q The electric field of a plane electromagnetic wave is given by E Ecos cos kz ot At t 0 a positively charged particle is at the point x y z...
- Q circular loop rotating in a uniform 7 4x10 2 T magnetic field Figure 1 Figure B Pivot X Figure Circular loop 1 of 1 The figure is an edge on...
- Q 2 kg of ice at 20 C is mixed with 5 kg of water at 20 C The water content of the final mixture is Latent heat of fusion 80...
- Q Below is a loop fashioned from portions of a circular loop of radius R and a square loop of side length 2R 01 00 R R If the loop carries...
- Q A charged particle enters a uniform magnetic field at some angle The particle will be deviated from its path by angle 180 Value of 0 will be X X X...
- Q OF A wire of length e carries a current bent into various regular polygons shown below Find magnetic moment in terms of length of the wire a Equilateral triangle b...
- Q 3 75 A square wire of length 1 mass m and resistance R slides without friction on parallel conducting resistance rails as in Fig 13 19 The rails are inter...
- Q A bar magnet of magnetic moment M is cuts into two equal parts in following two fashions a Paralle to its length b Perpendicular to its length then what happens...
- Q Two long wires carrying same currents are placed perpendicular to each other The magnetic force on a small length dL of second wire is 1 Hol dL 2 L M...
- Q The rectangular wire frame as shown in figure has a width d mass m resistance R and a large length A uniform magnetic field B exists to the left of...
- Q 49 A wire carrying a current i is placed in a magnetic field in the form of the curve y a sin iBL Force acting on the wire is 1...
- Q A rectangular coil of length 0 12 m and width 0 1 m having 50 turns of wire is suspended vertically in a uniform magnetic field of strength 0 2...
- Q 28 Magnitude of magnetic field at a point P due to a current carrying wire starting from origin and extended along y axis is Y 1 3 4 3 i...
- Q Two short bar magnet of length 1 cm each have magnetic moments 1 20 Am and 1 00 Am respectively They are placed on a horizontal table parallel to each...
- Q Paragraph for Q Nos 12 and 13 An infinitely large conducting slab of thickness t is centered at y 0 in X Z plane as shown in figure The surface...
- Q 6 1 A uniform magnetic field of intensity B sin 2t directed into the plane of the paper exists in the cylindrical region of radius 1 m A uniform loop...
- Q Q 5 A rectangular loop of wire lies on the xy plane where there is a magnetic field B B2 The total length of the wire is L but its...
- Q Q 2 Particle A of mass M and charge Qis travelling in circular motion on the x y plane where a uniform magnetic field B Bk exists The radius of...
- Q 40 3 infinitely long parallel wires carry currents as shown The force experienced by wire C per unit length is A B C E Ho 612 2n d 2 31...
- Q A long straight wire of a circular cross section of radius R carrying steady current i The current is uniformly distributed across the cross section The graph corresponding to the...
- Q A solenoid 4 cm in diameter and 20 CM in length has 250 turns and carries a current of 15 ampere calculate the flux through the surface of a disc...
- Q In given figure X and Yare two long straight parallel conductors each carrying a current of 2 A The force on each conductor is F When the current in each...
- Q A pair of parallel horizontal conducting rails of negligible resistance shorted at one end is fixed on a table The distance between the rails is L A conducting massless rod...
- Q Statement 1 The magnetic field due to finite length of a straight current carrying wire is symmetric about the wire Statement 2 Ampere law can be used to find magnetic...
- Q Equal antiparallel currents are directed in two parallel wires so that one is out of the page and the other is into the page as shown Compare the magnitude of...
- Q An infinitely long wire lying along z axis cames a current 1 flowing towards positive z direction There is no other current consider a circle in x y plane with...
- Q 13 A hypothetical magnetic field existing in a region is given by B B e where e denotes the unit vector along the radial direction A circular loop of radius...
- Q Question 1 A uniform magnetic field B exists in circular region of radius R as shown which is decreasing with time at a constant rate There is a concentric wooden...
- Q Which of the following statement is correct MP PET 2008 a Electric field is zero on the surface of current carrying wire b Electric field is non zero on the...
- Q Two identical current carrying coaxial loops carry current I in an opposite sense A simple amperian loop passes through both of them once Calling the loop as C Question Type...
- Q 3 20 4 25 15 Same current is flowing in three infinitely long wire along positive x y and z directions The magneti at a point 0 0 a would...
- Q Question 11 Inside a homogenous long straight fixed cylindrical wire of circular cross sectional area a cylindrical cavity is made whose axis is parallel to the conductor axis and displaced...
- Q d KE PE 4 In the figure shown the four rods have resistance per unit length The arrangement is kept in a magnetic field of constant magnitude B and directed...
- Q 3 Figure shows a conducting disc rotating about its axis in a perpendicular uniform and constant magnetic field B A resistor of resistance R is connected between the centre and...
- Q 22 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...
- Q 1 In all other cases A wire of uniform resistance per unit length is bent to form an equilateral triangle of side L A current I flows into one corner...
- Q at 2 kg ice at 20 C is mixed with 5 kg water 20 C Then final amount of water in the mixture would be Given specific heat of ice...
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