Question

Which of the following statements are true? Check all that apply.

Answer 1

Answer:

The correct options are (A), (B) and (C).

Explanation:

(A) The electric field between the plates of a parallel plate capacitor is uniform and is given by :

$E=\dfrac{Q}{A\epsilon_0}$

Where,

Q is the charge

A is the area of cross section

(B) A capacitor is a device that is used to store electric charges and electric potential energy.

Stored potential energy is given by, $U=\dfrac{Q^2}{2C}$

Where, Q is the charge and C is the capacitance of the capacitor.

(C) The capacitance of a capacitor depends upon its structure.

$C=\dfrac{A\epsilon_0}{d}$

A is the area of plate. It determines the structure.

Answer 2

Answers.
a. The electric field between the plates of a parallel capacitor is uniform
b. A capacitor is a device that stores potential energy and electric charges.
c. The capacitance of a capacitor depends upon its structure.

Explanation
Capacitor is a device that is used to store electric charge. The capacitance that can be stored in a capacitor depend on area of overlap of the plates, dielectric used and distance between the two plates of a parallel capacitor.
From the choices given in the question the one that applies are:
a. The electric field between the plates of a parallel capacitor is uniform
b. A capacitor is a device that stores potential energy and electric charges.
c. The capacitance of a capacitor depends upon its structure.