Worksheet: Energy Conservation in Circuits

In this worksheet, we will practice applying Kirchoff's laws to circuits to find the values of currents and potential differences in these circuits.

Q1:

The resistor in the circuit shown is powered by two batteries in parallel that have terminal voltages of 2.5 V each. What is the potential drop across the resistor?

Q2:

Find the potential drop across the resistor in the circuit shown. The batteries powering the circuit each have a terminal voltage of 2.5 V.

Q3:

The potential drop across the resistor in the circuit shown is 12 V. The terminal voltage of one of the batteries powering the circuit is 5.5 V. Find the terminal voltage 𝑉 of the other battery powering the circuit.

Q4:

The potential drop across the resistor in the circuit shown is 15 V. The terminal voltage of one of the batteries powering the circuit is 5.5 V. Find the terminal voltage 𝑉 of the other battery powering the circuit.

Q5:

The current in three wires of the circuit shown are known. The currents 𝐼 and 𝐼 are unknown.

Find 𝐼 .

Find 𝐼 .

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