Question

The symbol of capacitor is $- \parallel -$
A. True
B. False

Answer 1

The capacitor is a device in which electrical energy can be stored. It is the positioning of two-conductors generally carrying charges of equal magnitudes and opposite sign and separated by an insulating medium. The non-conductive region can either be an electrical insulator or vacuum such as glass, paper, air or a semi-conductor called a dielectric.

Complete answer:
A capacitor is a device which in an electric field stores electrical energy. Capacitors vary in various shapes and sizes.
Capacitors are used for:

1. It is used as a sensing device.
2. It is used in the audio system of the vehicle.
3. It is used for storing electrical potential energy such as batteries.
4. It is also used to separate AC and DC.
   The circuit symbol of capacitor is $- \parallel -$
   The charge on a capacitor ‘Q’ is directly proportional to the potential difference ‘V’ between the plates is known as capacitance.
   Mathematically it is given as,
   \eqalign{ & Q \propto V \cr & \Rightarrow Q = CV \cr}
   Where ‘C’ is expressed as the capacitance of the capacitor.
   The unit of capacitance is expressed in Farad ‘F’.
   The capacitance of a capacitor depends upon few factors such as:
5. It depends upon the shape and size of the conductor.
6. It depends upon the medium between them.
7. It also depends upon the presence of the other conductors near it.
   Thus, the given circuit symbol is correct for the capacitor, so it is true.

Hence, option (A) is the correct answer.

Note:
A capacitor is further categorized as, parallel plate capacitor, spherical capacitor and cylindrical capacitor. These categories are based on the structure of the capacitor. Capacitors store energy just like a battery, but unlike a battery they lose their store charged more quickly and easily.