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A 100 V voltmeter having an internal res...

A `100 V` voltmeter having an internal resistance of `20 k Omega` is connected in series with a large resistance `R` across a `110 V` line. What is the magnitude of resistance `R` if the voltmeter reads `5 V`?

A

`210 k Omega `

B

`315 k Omega `

C

`420 k Omega`

D

`440 k Omega `

Text Solution

Verified by Experts

The correct Answer is:
C
`V = iR`
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