a voltmeter of range 2V and resistance 300ohm cannot be converted into ammeter of range a) 1A b) 1mA c) 100mA d) 10mA
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1mA
Explanation:
Ig = (2 / 300) A = (2 / 300) × 1000 mA = (20 / 3) mA
Therefore, Ig = 6.67 mA
As range of ammeter cannot be decreased but can be increased only, therefore, the instrument cannot be converted to measure the range 1 mA.
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