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A students connects an ammeter A and a v...

A students connects an ammeter `A `and a voltmeter `V` to measure a resistancer as shown in figure. If the voltmeter reads `20 V` and the ammeter reads `4A`, then `R` is

A

Equal to `5Omega`

B

Greater than `5Omega`

C

Less than `5Omega`

D

Greater or less than `5Omega` depending,upon the direction of current

Text Solution

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The correct Answer is:
B
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