Physics question and answers for January 18, 2024
- Q 4 20 A point charge causes an electric flux of through a spherical Gaussian surface of 10 0 cm radius centred on the charge a If the radius of the...
- Q Example Ex x 63 The electric field components in Fig 1 88 are E E 0 in which a 800 N Cm Calcu late i the flux de through the...
- Q N The magnitude of the average electric field normally present in the atmosphere just above the surface of the Earth is about 150 N C directed inward towards the center...
- Q FIGURE 4 19 A point charge of 2 0 C is at the centre of a cubic Gaussian surface 9 0 cm on edge What is the net electric flux...
- Q A rectangular surface of sides 10 cm and 15 cm is placed inside a uniform electric field of 25 V m such that the surface makes an angle of 30...
- Q 8 Electric charge is uniformly distributed over a long straight wire of radius 1 mm The charge per cm length of the wire is Q coulombs A cylindrical surface of...
- Q 5 The electric field near a conducting surface having a uniform surface charge density o is given by O and is parallel to the surface a 80 20 b and...
- Q Two point charges q and q are fixed in space at separation a The flux through infinite plane perpendicular to line joining the charges and at a distance a 3...
- Q A point charge of 2 0 C is at the centre of a cubic Gaussian surface of edge 9 0 cm What is the net electric flux through the surface...
- Q An electric flux of 6 x 10 Nm C passes normally through a spherical Gaussian surface of radius 10 cm due to a point charge placed at its centre a...
- Q If E 2x then find volume charge density inside le cube 1 8 85 x 10 1 C m 2 1 77 x 10 1 C m 3 8 85...
- Q A point charge is placed at centre of a disc now it is moved away from centre along axis then graph between flux related to the disc and distance x...
- Q All are true 26 A charge Q is placed at the corner of a cube of edge length L The electric flux linked to one of the face not touching...
- Q A charge q is placed at a distance x from the flat surface of the cone as shown in figure i Flux through the curved surface of cone due to...
- Q A rectangular loop of area 20 cm x 30 cm is placed in a magnetic field of 0 3 T with its plane i normal to the field ii inclined...
- Q A given charge is situated at a certain distance from an electric dipole in the end on position experiences a force F If the distance of the charge is doubled...
- Q 7 An insulating solid sphere of radius R is charged in a non uniform manner such that volume charge A density p r where A is positive constant and r...
- Q A point charge q is placed at a distance on the y axis vertically above the surface which lies in the xz plane as shown in the figure The flux...
- Q Qr sphere is given by p TR4 where Q is total charge on sphere and R is its radius r is distance from centre of sphere Magnitude of electric field...
- Q 53 Above an infinitely large plane carrying charge density o the electric field points up and is equal to What is the magnitude and direction of the electric 260 field...
- Q Charge is distributed inside a long cylindrical volume of radius R such that charge density inside the volume varies as P ar where a is a constant and the distance...
- Q A point charge q is placed at a normal from one edge of a semi infinite large plate as shown in figure Find net electric flux passing through this plate...
- Q 35 A small spherically symmetric charge q is placed at one vertex of a cube as shown The flux through the faces ABCD and HGFE are respectively 9 a H...
- Q 9 A square of side d is placed horizontally A particle having charge q is held at a height d above one comer of the square The electric flux passing...
- Q In a region of space the electric field E Exi Eoyj Consider an imaginary cubical volume of edge a with its edges parallel to the axes of coordinates Now A...
- Q Consider a gold nucleus to be a sphere of radius 6 9 fermi in which protons and neutrons are distributed Find the force of repulsion between two protons situated at...
- Q A circular loop of radius 0 3 cm lies parallel to a much bigger circular loop of radius 20 cm The centre of the small loop is on the axis...
- Q will change B If Q changes E will change b D If Q 0 and Q 0 then E 0 but 0 electric flux passing through the cube A charge...
- Q An electric field E 4x y 1 N C passes through the box shown in figure The flux of the electric field through surfaces ABCD and BCGF are marked as...
- Q This question has Statement 1 and Statement 2 Of the four choices given after the statements choose the one that best describes the two statements AIEEE 2012 An insulating solid...
- Q 24 The electron is projected from a distance d a with initial velocity u parallel to a uniformly charged flat conducting plate as shown in figure It strikes the plate...
- Q 15 The radius of a gold nucleus Z 79 is about 7 0 10 m Assume that the positive charge is distributed uniformly throughout the nuclear volume Find the strength...
- Q 1 Variation of electric potential V due to a charge spherical conducting system is shown in the figure V 10 volt A electric energy density is zero from r 0...
- Q The adjacent diagram shows a charge Q held on an insulating support S and enclosed by a hollow spherical conductor O represents the centre of the spherical conductor and P...
- Q 31 An uncharged conductor has two spherical cavities of radius r and r two point charges q and q are placed at centres of cavities Potential at the surface of...
- Q added inside the surface then change nr A sphere of radius R has charge density given by P Po 1 where po is a constant r is distance 3R from...
- Q Find the electrostatic force of interaction between two halves of a spherical conductor of radius R carrying a charge Q
- Q a sph erica symme distribution with charge density varying as p r Po upto r R and p r 0 for r R where r is the distance from the...
- Q gure shows in cross section two Gaussian spheres and two Gaussian cubes that are centered on a positively charged particle Rank greatest first and indicate whether the magnitudes are uniform...
- Q 2 3 1 4 Shown in the figure are two point charges Q and Q inside the cavity of a spherical shell The charges are kept near the surface of...
- Q A spherically symmetric system shown in the figure below consists of a conducting spherical core and a conducting spherical shell These conductors carry some unknown charges which you are asked...
- Q A cube has sides of length L 0 330 m It is placed with one corner at the origin as shown in Figure 1 The electric field is not uniform...
- Q A charge q is placed at a point exactly above the centre of square of side a at a distance The flux passing through square will be The value n...
- Q A neutral aluminum pie plate is brought near to a positively charged foam board When it is held near what does the charge distribution on the aluminum pie plate look...
- Q A mom conducting spherical shell of inner radius a and outer radius b has within its thickness a positive volume and r change density p M 7 where M is...
- Q A charged particle q 3 C lies in the center of a cube The length of one side of the cube is 144 cm A q 3 C Part a...
- Q An electric field is given by E 51 7y 8 3k crosses gaussian cube having side length 2m as shown in the figure Then the net charge inclosed in the...
- Q field near the surface of this sheet and a cylindrical Gaussian surface The electric field has a large uniformly charged sheet field lines for the electric uniform strength of 200...
- Q Electrostatics Quiz Set 1 2 1 How many electrons must be added to a neutral object to leave a net charge of 1 00Ca
- Q 5 Using the given diagram show that the following is true PQ RQ SR TS PT RO SR TS RQ SR TS PT P S
- Q The earth is struck by an average of 10 each second from lightning 2 How far apart are two protons if the
- Q In a cubical volume of side length a = 0.50 m, the electric field is? = E(1 + 2.5) + Eo(1+2.2)?, where E = 0.15 N/C. The cube hasits sides...
- Q (!) THE FOLLOWING QUESTIONS ARE BASED ON THE INFORMATIONGIVEN BELOW.A sphere of radius To carries a volume charge density p. A spherical cavity ofradius To/2 is then scooped out and...
- Q An infinitely long metal cylinder of radius R and surface charge density ? is placed symmetrically with an imaginary surface of the shape of a prism. The length of prism...
- Q A neutral, aluminum pie plate is brought near to a positively charged foam board. When it is held near, what does the charge distribution on the aluminum pie plate look...
- Q An infinite thin sheet of charge, with uniform charge per unit area O, fills the xy plane. The total outward electric flux through an imaginary sphere of radius R, centered...
- Q Two concentric shells of radii a and 2a are placed far away from a parallel plate capacitor of capacitance C Plates are given and 90 Switches S and S are...
- Q 34 In the given LC circuit charge q on capacitor is given by graph as shown in the figure questionpaper q Which of the following graphs best represents current in...
- Q 52 The capacitance of a parallel plate capacitor is Co If a dielectric of dielectric constant K and thickness C equal to one fourth the separation is placed between the...
- Q 27 In an LCR circuit inductance is changed from L to L to keep the same resonance frequency C should 2 be changed to 1 20 plo 8 014 4...
- Q a b I The two plates of a capacitor hold 2800 C and 2800 C of charge respectively when the potential differ ence is 930 V What is the capacitance...
- Q Two identical parallel plate capacitors A and B are connected in series through a battery of potential difference V see figure Area of each plate is a and initially plates...
- Q 29 A finite ladder is constructed by connecting several sections of 2 F 4 F capacitor combinations as shown in figure 31 E18 It is terminated by a capacitor of...
- Q How many 1 F capacitors must be connected i parallel to store a charge of 1 C with a potential 110 V across the capacitors 1 990 3 9090 2...
- Q A parallel plate cap square parallel plates of area A and separated by a distance d The capacitor is connected to a battery with potential V and allowed to fully...
- Q usto A 3 F capacitor is charged to a potential of 300 V and 2 F capacitor is charged to 200 V The capacitors are then connected in parallel with...
- Q 40 In the circuit below C 20 F C 40 F and C3 50 F If no capacitor can sustain more than 50 V then maximum potential difference between X...
- Q In the circuit shown in figure the capacitors are initially uncharged The current through resistor PQ just after closing the switch is B 2A from Q to P D zero...
- Q In the circuit shown in figure the switch S is initially open and both the capacitors are initially uncharged Switch S is closed at t 0 then S i at...
- Q Let dielectric strength and dielectric constant be X and K respectively Then for a material used as dielectric in capacitor must have 1 high K and low X 3 low...
- Q P Capacity will become two time Q Charge stored in capacitor wil become two times 2 Distance between capacitor plates is halved R Energy stored in capacitor wi become two...
- Q er ht al II 105 A parallel plate air cored capacitor has a capacitance C When it is half filled with a dielectric of dielectric constant 5 as shown in...
- Q ds a aving Deed can ance e Electrostatic Potential and Capacitance 103 A parallel plate capacitor has an electric field of 105V m between the plates If charge on the...
- Q 2S 56 A parallel plate air capacitor is charged and ther disconnected from battery When a dielectric materia is inserted between the plates of the capacitor ther which of the...
- Q 63 An insulator plate is passed through the plates of a capacitor as shown in the figure below Then current outside the capacitor A B 1 First flows from A...
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