Questions
In the adjacent shown circuit, a voltmeter of internal resistance R, when connected across B and C reads . Neglecting the internal resistance of the battery, the value of R is (in kilo ohm)
detailed solution
Correct option is Y
When a resistance of R is connected in parallel between B and C.
The effective resistance between B and C will be
So the potential difference between B and C is given by , which is given as
on solving we get
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detailed solution
Correct answer is 25
When a resistance of R is connected in parallel between B and C.
The effective resistance between B and C will be
So the potential difference between B and C is given by , which is given as
on solving we get
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