How many capacitors??

Question

How many 1μF capacitors would be need to be connected in parallel in order to store a charge of 1 coulomb with a potential of 200volts across the capacitors?

I'm looking at my equation sheet and I think using Q = CV formula would help me solve it... the question is how to find how many capacitors do I need to fill up a full parallel circuit?

Answer 1

You're right, C = Q/V is the right formula, and to calculate equivalent capacitance, remember that parallel capacitances add. ( C tot = C1 + C2 ....)

If C tot = Q/V = 1/200 = 0.005 F = 5 milli farads

C tot = (x # of)(1 micro farad)

You'd need 5000 of them.