To increase the current sensitivity of a moving coil galvanometer by 50%, its resistance in increased so that the new resistance becomes twice the initial resistance. By what factor does the voltage sensitivity change?

Remains same
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Voltage Sensitivity = NBA/kR Therefore, here increase in resistance would decrease the VOLTaGe sensitivity.
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Here is the answer

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Here is the answer
  • 5
You HV to start from here and then see my first photo,I hope it may help u

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it will change
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