Question

in a circuit shown ,the resistance of ammeter A is negligible and that of voltmeter V is very high. When the key K is open , the reading of voltmeter V is 1.35 V. On closing the key , the reading of ammeter is 1.00 A and that of voltmeter drops to 1.03 V. calculate R

Answer 1

Explanation:

answer is 1.35or10.3

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Answer 2

Explanation:

Given,

I = 3 A

V = 6 V

We know that,

V = IR

$r \: = \frac{v}{1}$

If the ammeter and voltmeter have resistance i.e.