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Question: In the circuit diagram in Fig., the potential difference across the plates of the capacitor C is – ...

In the circuit diagram in Fig., the potential difference across the plates of the capacitor C is –

A

2.5 volt

B

1.5 volt

C

1.0 volt

D

Zero volt

Answer

Zero volt

Explanation

Solution

i = 2.5–1.530\frac{2.5–1.5}{30} = 1.530\frac{1.5}{30} = 120\frac{1}{20}

i = 2.5−1.530=120\frac{2.5 - 1.5}{30} = \frac{1}{20}

VA – 1.5 + 1 + 10 (120)\left( \frac{1}{20} \right) – VB = 0

VA – VB = 0