Four resistors, each of resistance R and a key K are connected as shown in the figure…
Physics · Class 12 · CBSE — Current Electricity
Four resistors, each of resistance \(R\) and a key \(K\) are connected as shown in the figure. The equivalent resistance between points \(A\) and \(B\) when key K is open, will be:
- \(4 {R}\)
- \(\infty\)
- \(\frac{{R}}{4}\)
- \(\frac{4 {R}}{3}\)
Answer
(A) 4 R
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