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Question 20N.2.SL.TZ0.5b(ii)

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Date November 2020 Marks available [Maximum mark: 1] Reference code 20N.2.SL.TZ0.5b(ii)
Level SL Paper 2 Time zone TZ0
Command term Calculate Question number b(ii) Adapted from N/A
b(ii).
[Maximum mark: 1]
20N.2.SL.TZ0.5b(ii)

The graph shows how current I varies with potential difference V across a component X.

Component X and a cell of negligible internal resistance are placed in a circuit.

A variable resistor R is connected in series with component X. The ammeter reads 20 mA.

(b(ii))

Calculate the power dissipated in the circuit.

[1]

Markscheme

power «=4.0×0.020»=0.080 «W» ✓

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