Current Electricity 4 Question 32
32. Two resistors, and are connected in series with a battery. It is desired to measure the current in the circuit. An ammeter of resistance is used for this purpose. What will be the reading in the ammeter? Similarly, if a voltmeter of resistance is used to measure the potential difference across the resistor, what will be the reading in the voltmeter?
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Solution:
(b)
Refer figure (a) Current through ammeter,
Refer figure (b) Combined resistance of
Reading of voltmeter