試題詳解

7. How many 1 µF capacitors must be connected in parallel to store a charge of 1 C with a potential of 110 V across the capacitors?
(A) 7 .1×10³
(B) 8 .4×10³
(C) 9 .1×10³
(D) 10 .2×10³
(E) 12.4×10³