In the given figure, the instantaneous value of alternating e.m.f. is `e = 14.14 sin omega t`. The reading of voltmeter in volt will be

The value of alternating e.m.f. is e = 500 sin 100pit , then the frequency of this potential in Hz is –

The peak value of an alternating e.m.f. is 141.4 V. What would be the reading of an a.c. voltmeter when connected across this e.m.f. ?

The peak value of alternating e.m.f. in a generator is given by e_(0) =

In the adjoining circuit, the e.m.f. of the cell is 2 volt and the internal resistance is negligible. The resistance of the voltmeter is 80 ohm . The reading of the voltmeter will be

In the adjoining circuit, the e.m.f. of the cell is 2 volt and the internal resistance is negligible. The resistance of the voltmeter is 80 ohm . The reading of the voltmeter will be

The instantaneous value of alterninig voltage is given by E = 140 sin 300 t. what is rms value of voltage and frequency of supply ? Take pi = 3 and sqrt2 = 1.4 .

In the circuit shown below, the voltmeter is of large resistance. The E.M.F. of the cell is epsilon . The reading of the voltmeter is