KCET · Physics · Current Electricity
Consider the following statements regarding the network shown in the figure.
(1) The equivalent resistance of the network between points \(A\) and \(B\) is independent of value of \(G\).
(2) The equivalent resistance of the network between points \(A\) and \(B\) is \(\frac{4}{3} R\)
(3) The current through \(G\) is zero.
Which of the above statements is/are true?
- A (1) alone
- B (2) alone
- C (2) and (3)
- D (1), (2) and (3)
Answer & Solution
Correct Answer
(D) (1), (2) and (3)
Step-by-step Solution
Detailed explanation
\(R_{\text {eff }}=\frac{(P+Q)(R+S)}{(P+Q+R+S)}\)
\(R_{\text {cff }}=\frac{4}{3} R\)
\(R_{\text {cff }}=\frac{4}{3} R\)
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