5) A small positive test charge moves in the direction of a uniform electric fie

Question

5) A small positive test charge moves in the direction of a uniform electric field. Does its potential energy increase or decrease? Does the electric potential increase or decrease? 6) A parallel-plate capacitor has the space between the plates filled with air. It is charged by a battery and then disconnected. The separation between the plates is then increased. Describe quantitatively what happens to a) the charge, b) the electric field, c) the potential difference, d) the capacitance, and e) the energy stored in the capacitor. (Hint: first figure out which quantities remain constant.)

Explanation / Answer

5. If it is a uniform E field so potential will not change.

Electric potential also will not change.

6. a) charge remains as a constant.

b. E filed remains as a constant.

C. Potential increases.

D. Capacitance decreases.

E. Energy increases.

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