The value of the steady current which when flowing through the same resistor produces heat at the same rate as the mean rate of heat produced by the alternating current is__________________?

Related Mcqs:

An alternating current or voltage_____________________?

A. fluctuates off and on B. varies in magnitude alone C. changes its direction again and again D. changes its magnitude harmonically and reverses its direction of flow after regularly recurring intervals...

A capacitor of capacitance 30µF is charged by a constant current of 10mA. If initially, the capacitor was uncharged what is the time taken for the potential difference across the capacitor to reach 300V ?

A. 0.9sec B. 15 sec C. 1.5x105sec D. 0.9x102sec...

Ammeter connected in an AC circuit measures______________?

A. The exact value of the current B. RMS value of the current C. The net value of the current D. The peak value of the current...

What is the self-inductance of a coil in which an induced emf of 2V is set up when the current changes at the rate of 4 As-1 ?

A. 0.5 mH B. 0.5H C. 2.0H D. 8.0H...

A voltage V = V0 cos ωt is applied across a resistor of resistance R the average power dissipated per cycle in the resistor is given by___________?

A. V√/√2R B. V/√2√R C. V02/√2R D. 2/√2√R...