Q. 503.8( 4 Votes )
A voltmeter consi
Potential Difference (V) across a resistor of resistance R when current I passes through it is given by Ohm’s law:
Note that 1A = 100mA.
Note that the current at full deflection is .
The voltmeter can be represented as follows:
It is given that the resistances are in series.
Potential difference is maximum when there is full scale deflection and is given by Ohm’s law:
Thus, maximum potential difference that can be measured is 6V.
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