Question

Calculate the capacitance of a system that stores 2.0 x 10^-10C of charge at 100.0 V. Use C=q/v.
A. 2.0 x 10^-12 F
B. 2.0 x 10^-8 F
C. 5.0 x 10^11 F
D. 5.0 x 10^7 F

Answer 1

Answer:

2 x 10⁻¹²F

Explanation:

Capacitance is defined as the ration of charge (q) on either plates to the potential difference V between them.

                        C = $\frac{q}{V}$

Where  q is the charge on the plates

             V is the potential difference

From the given parameters:

Charge on plate, q = 2.0 x 10⁻¹⁰C

Potential difference across the plate = 100V

Unknown parameter:

Capacitance of the system = ? = C

Solution

        Capacitance = 2.0 x 10⁻¹⁰/100 = 2 x 10⁻¹²F