WBJEE · Physics · Capacitance
Four identical plates each of area \(a\) are separated by a distance \(d\). The connection is shown below. what is the capacitance between \(P\) and \(Q ?\) 
- A \(2 a \varepsilon_{0} / d\)
- B \(a \varepsilon_{0} /(2 d)\)
- C \(a \varepsilon_{0} / d\)
- D \(4 a \varepsilon_{0} / d\)
Answer & Solution
Correct Answer
(A) \(2 a \varepsilon_{0} / d\)
Step-by-step Solution
Detailed explanation
Suppose the pair of plates is connected to positive terminal of the battery and the pair of plates \(Q\) is connected to the negative terminal of the battery. From figure, it is clear that we have two capacitors \(C_{1}\) and \(C_{2}\). Positive plates of \(C_{1}\) are connected…
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