MHT CET · Physics · Current Electricity
A voltmeter of range \(3 \mathrm{~V}\) and resistance \(200 \Omega\) cannot be converted to an ammeter of range
- A \(10 \mathrm{~mA}\)
- B \(100 \mathrm{~mA}\)
- C \(1 \mathrm{~A}\)
- D \(10 \mathrm{~A}\)
Answer & Solution
Correct Answer
(B) \(100 \mathrm{~mA}\)
Step-by-step Solution
Detailed explanation
\(I_{g}=\frac{3 \mathrm{~V}}{200 \Omega}=0.015 \mathrm{~A}\)
So, new range cannot be less than \(15 \mathrm{~mA}\).
So, new range cannot be less than \(15 \mathrm{~mA}\).
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