Question 32
Question 32 of 40
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
10. D.C. circuits
10.1. Practical circuits

understand the effects of the internal resistance of a source of e.m.f. on the terminal potential difference

16. Thermodynamics
16.2. The first law of thermodynami...

recall and use W = pΔV for the work done when the volume of a gas changes at constant pressure and understand the difference between the work done by the gas and the work done on the gas

5. Work, energy and power
5.1. Energy conservation

understand the concept of work, and recall and use work done = force × displacement in the direction of the force