Alternating CurrentHard

Question

The r.m.s. value of current for a variable current i = i1 cos ωt + i2 sin ωt :-

Options

A.(i1 + i2)
B.(i1 + i2)2
C.(i12 + i22)1/2
D.(i12 + i22)1/2

Solution

-

Create a free account to view solution

View Solution Free
Topic: Alternating Current·Practice all Alternating Current questions

More Alternating Current Questions

The current in a circuit containing a capacitance C and a resistance R in series leads over the applied voltage of frequ...In which of the following case power factor will be negligible :-...A 12 ohm resistor and a 0.21 henry inductor are connected in series to an AC source operating at 20 volts, 50 cycle/seco...A transformer is used to light a 140 watt, 24 volt lamp from 240 V AC mains. The current in the main cable is 0.7 amp. T...In an LCR circuit, the capacitance is made one-fourth, when in resonance. Then what should be the change in inductance, ...