Power Dissipation

A 5 Ω resistor carries a current of 4 A. What is the power dissipated in the resistor?

Three identical cells, each with internal resistance 0.6 ohm, are connected in parallel to reduce th...

A battery of emf 12 volts and internal resistance 3 ohm drives a variable load resistor, so for what...

Engineers relate the current density inside a conductor to the local electric field through the mate...

An electric heater rated to carry 5 amperes operates across a 220 volt mains supply in a kitchen, so...

Current passes through a 20 ohm resistor at 2 amperes for 5 minutes in a demonstration, so how much ...

Four identical cells, each of emf 1.5 volts and internal resistance 0.2 ohm, are connected in series...

Two resistors of 6 ohm and 3 ohm are wired side by side between the same two nodes of a circuit, so ...

A cell of emf 6 volts and internal resistance 0.5 ohm is connected to an external resistor of 2.5 oh...

While measuring a battery on a test bench, its terminal voltage drops from 12 volts on open circuit ...

At a junction in a network, currents of 5 A and 3 A enter while currents of 4 A and I leave through ...

Applying the loop rule around any closed mesh of a resistive network sets the algebraic sum of certa...