Joule Heating Law#!#Power Dissipated by a Resistors#!#Power Rating

Power dissipated in 4 Omega resistor is :

The power dissipated 6 Omega resistor is

Three equal resistors connected in series across a source of emf together dissipate 10W of power. What would be the power dissipated if te same resistors are connected in parallel across the same source of emf?

The average power is dissipated in a pure inductor is

Three equal resistors connected in series across a source of e.m.f. together dissipate 10 W of power. What should be the power dissipated if the same resistors are connected in parallel across the same source of e.m.f.

Resistors P , Q , and R in the circuit have equal resistances. If the battery is supplying a total power of 12 W , what is the power dissipated as heat in resistors R ?

Derive the expression for the power dissipated by an ideal resistor in an AC circuit .

The resistance P, Q and R in the circuit have equal resistance. The battery of negligible resistance, supplies a total power of 12W. What is the power dissipated by heating in resistor R -

The value of the resistance R in figure is adjusted such that power dissipated in the 2Omega resistor is maximum. Under this condition

When a voltage V = V_(0) cos omegat is applied across a resistor of resistance R, the average power dissipated per cycle in the resistor is given by