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In this lesson, we will learn how to calculate the current and potential drop-offs through circuits containing multiple components and branches.

Q1:

Consider the circuit shown below. The terminal voltage of the battery is 18.00 V.

Find the equivalent resistance of the circuit.

Find the current through π 1 .

Find the current through π 2 .

Find the current through π 3 .

Find the potential drop across π 1 .

Find the potential drop across π 2 .

Find the potential drop across π 3 .

Find the power dissipated by π 1 .

Find the power dissipated by π 2 .

Find the power dissipated by π 3 .

Find the power supplied by the battery.

Q2:

Consider the circuit shown. The battery has an emf of 30.00 V and an internal resistance of 1.00 Ξ©.

Find the current from the battery.

Find the current through π 4 .

Find the current through π 5 .

Find the power dissipated by π 4 .

Find the power dissipated by π 5 .

Q3:

In the circuit shown, the current πΌ 1 is 2.35 A and the current πΌ 2 is 1.61 A.

Calculate the current through the 13.00 Ξ© resistor.

Calculate the voltage across 13.00 Ξ© resistor.

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