COMEDK · Physics · 19. Current Electricity
A galvanometer of \(50 \Omega\) resistance is converted into an ammeter using a shunt resistance of \(10 \Omega\). If the same resistance is used to convert the same galvanometer in to a voltmeter, what would be the ratio of the resistance of the ammeter to the resistance of the voltmeter?
- A \(5: 36\)
- B \(5: 6\)
- C \(1: 5\)
- D \(5: 1\)
Answer & Solution
Correct Answer
(A) \(5: 36\)
Step-by-step Solution
Detailed explanation
Let \(G = 50 \Omega\) be the resistance of the galvanometer and \(S = 10 \Omega\) be the shunt resistance. The resistance of an ammeter \(R_{A}\) is given by the parallel combination of the galvanometer and the shunt resistance:…
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