The diagram above shows two capacitors P and Q of capacitance 5μF and 10μF. Find the charges stored in P and Q respectively
-
A.
2μC and 4μC -
B.
4μC and 2μC -
C.
100μC and 200μC -
D.
200μC and 100μC
Correct Answer: Option C
Explanation
Since capacitance C = Q/V, => Q = CV
∴ Qp = 5 x 10-b x 20
= 100 x 10-b or 100μC
Qp = 10 x 10-b x 70
= 200 x 10-b or 200μC
Correct option 100μC and 200μC