A parallel plate capacitor of 1 x 10^-6 C is connected to a 12 V battery. What is the ratio of area to separation distance of the capacitor? (₀ = 8.85 x 10^-10 C²/Nm²)

Select one:

a.235

b.47

c.188

d.94

The correct expression relating electric potential difference to the electric field, for point charges is:

Select one:

a.

b.

c.

d.

You have a positive test charge brought near a negatively charged ball. Describe what is happening if you move the test charge even closer. Be sure to use the terms Potential Energy, Potential Difference, Force, Work, and Electric Field.

How many electrons pass by a point every second if a 0.400-amp current is flowing? (e = -1.602 x 10^-19 C)

Select one:

a.1.25 x 10¹⁹ e

b.6.40 x 10²⁰ e

c.1.60 x 10¹⁸ e

d.2.50 x 10¹⁸ e