A sensitive galvanometer of resistance 50 Ω gives full-scale deflection at 100 mV. What is the maximum current it can safely carry?
Correct answer B. 2.0 mA
Explanation
By Ohm's law, I = V/R = 0.1 V ÷ 50 Ω = 0.002 A, which is 2.0 mA.
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