NCERT Physics Class12 Exampler Chapter-2 Electrostatic Potential and Capacitance Part-1

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Multiple Choice Questions

Q.1 A capacitor of 4 F is connected as shown in the circuit (Fig.).The internal resistance of the battery is O.5 . The amount of charge on the capacitor plates will be

Image of Capacitor Plates

Image of Capacitor Plates

Image of Capacitor Plates

  1. 0

  2. 4 C

  3. 16 C

  4. 8 C

Answer: D

Q.2 A positively charged particle is released from rest in an uniform electric field. The electric potential energy of the charge

  1. Remains a constant because the electric field is uniform.

  2. Increases because the charge moves along the electric field.

  3. Decreases because the charge moves along the electric field.

  4. Decreases because the charge moves opposite to the electric field.

Answer: C

Q.3 Figure shows some equipotential lines distributed in space. A charged object is moved from point A to point B.

Image of Equipotential Lines

Image of Equipotential Lines

Image of Equipotential Lines

  1. The work done in Fig. (i) is the greatest.

  2. The work done in Fig. (ii) is least.

  3. The work done is the same in Fig. (i), Fig. (ii) and Fig. (iii).

  4. The work done in Fig. (iii) is greater than Fig. (ii) but equal to that in Fig. (i).

Answer: C

Q.4 The electrostatic potential on the surface of a charged conducting sphere is 100V. Two statements are made in this regard:

: At any point inside the sphere, electric intensity is zero.

: At any point inside the sphere, the electrostatic potential is 100V.

Which of the following is a correct statement?

  1. is true but is false.

  2. Both & are false.

  3. is true, is also true and is the cause of .

  4. is true, is also true but the statements are independent.

Answer: C

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