An ammeter of resistance 10 Ω and a voltmeter of resistance 20 Ω are connected in a circuit as shown in figure. Find the ratio of the reading of voltmeter to ammeter respectively. (in SI units)
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answer is 3.33.
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Detailed Solution
Rab=30 Ω⇒ Vcd=9003=300 V vef=3003=100 V and Vgh=1003V = reading of voltmeter Vcd=300 VFrom KCL at junction d, reading of Ammeter = 10 A
An ammeter of resistance 10 Ω and a voltmeter of resistance 20 Ω are connected in a circuit as shown in figure. Find the ratio of the reading of voltmeter to ammeter respectively. (in SI units)