power dissipation

In the following circuit, the average voltage $V_o = 400 \left(1 + \frac{\cos \alpha}{3}\right)$ V, where $\alpha$ is the firing angle. If the power dissipated in the resistor is 6...

A $$3$$ $$V$$ $$dc$$ supply with an internal resistance of $$2$$ $$\Omega $$ supplies a passive non-linear resistance characterized by the relation $${V_{NL}} = {{\rm I}^2}{}_{NL}$...

A $$3$$ $$V$$ $$dc$$ supply with an internal resistance of $$2\,\,\Omega $$ supplies a passive non-linear resistance characterized by the relation $${V_{NL}} = {\rm I}_{NL}^2.$$ Th...

An energy meter connected to an immersion heater (resistive) operating on an $$AC$$ $$230V,$$ $$50$$ $$Hz,$$ $$AC$$ single phase source reads $$2.3$$ units ($$kWh$$) in $$1$$ hour....

The thermal resistance between the body of a power semiconductor device and the ambient is expressed as