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The current sensitivity of a moving coil...

The current sensitivity of a moving coil galvanometer is `10d iv//mA` and voltage sensitivity is `20 d iv//V`. Find the resistance of the galvanometer.

Text Solution

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Here, `I_s=10 d iv//mA=10 d iv//10^-3A`
`=10^4d iv//A`
`V_s=20 d iv//V`
As `V_s=theta/V=(theta)/(IR)=(I_s)/(R)` or `R=(I_s)/(V_s)=(10 d iv//A)/(20 d iv//V)`
`=500Omega`
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