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
  • -31
Voltage Sensitivity = NBA/kR Therefore, here increase in resistance would decrease the VOLTaGe sensitivity.
  • -3
Here is the answer

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

  • 31
it will change
  • -6
But V=IR
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What are you looking for?