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  • Solve! Current sensitivity of a moving coil galvanometer is 5 div/mA and its voltage sensitivity (angular deflection per unit voltage applied) is 20 div/V. The resistance of the galvanometer is

Current sensitivity of a moving coil galvanometer is 5 div/mA and its voltage sensitivity (angular deflection per unit voltage applied) is 20 div/V. The resistance of the galvanometer is
 

 

  • Option 1)

    250 \Omega

  • Option 2)

    25 \Omega

  • Option 3)

    40 \Omega

  • Option 4)

    500 \Omega

 

Answers (1)

best_answer

As we have learned @9775

Current sensitivity \theta /i=5 div/mA

voltage sensitivity \theta /v=20 div/mA

\frac{\frac{\theta }{i}}{\frac{\theta }{v}}=v/i=250\Omega

 


Option 1)

250 \Omega

Option 2)

25 \Omega

Option 3)

40 \Omega

Option 4)

500 \Omega

Posted by

Plabita

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