Question

Which one of the following is the unit of capacity?

• A. coulomb
• B. ampere
• C. volt
• D. coulomb/volt

Hint:

Capacitance is measured in farads (F), and it is the charge stored per unit voltage across the capacitor: \( 1 \, \text{F} = 1 \, \frac{{\text{C}}}{{\text{V}}} \).

Answer 1

The Correct Option is D

Step 1: Definition of capacitance.
Capacitance is the ability of a system to store charge per unit potential difference. The unit of capacitance is the farad (F), which is defined as: \[ 1 \, \text{F} = \frac{{1 \, \text{coulomb}}}{{1 \, \text{volt}}} \] Step 2: Understanding the units.
The unit of capacitance is \(\frac{{\text{coulomb}}}{{\text{volt}}}\), which is choice (D).
Step 3: Elimination of options.
- (A) coulomb: Incorrect, unit of charge, not capacitance.
- (B) ampere: Incorrect, unit of current.
- (C) volt: Incorrect, unit of potential difference.
- (D) coulomb/volt: Correct, unit of capacitance.
Conclusion: The unit of capacitance is coulomb/volt.