GATE EE 1991 Electrical and Electronic Measurements Solution Q 1 - Grad Plus
GATE EE 1991 Electrical and Electronic Measurements Solution

GATE EE 1991 Electrical and Electronic Measurements Solution Q 1

The current i(t) passing through 10Ω resistor as shown in Fig. (i) as a waveform as shown in Fig. (ii). Then the reading of the dc voltmeter is connected across 10Ω  resistor is  __.

Ans. 85

Explanation-

As we can observe from figure (ii), the current is variable, hence the voltmeter will read its average value.

I_{av}=\left ( \frac{12+5}{2} \right )A

V=Iav x 10Ω

V=\left ( \frac{12+5}{2} \right )\times 10=85
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