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Question 36

From Physics HL Paper 1 (May 2024, TZ2)

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  1. A charged capacitor is placed into a circuit with a resistor and an open switch. The time constant of the circuit is τ.
A circuit diagram showing a capacitor, a resistor, and an open switch.
A circuit diagram showing a capacitor, a resistor, and an open switch.

When the switch is closed at time t = 0 the initial power dissipated by the resistor is P₀.
What is (power dissipated by the resistor at t = τ) / P₀?

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Mixed-topic question
11.2 Voltage, Power, and EMFCapacitor discharge and RC time constant · legacy topic