Question 27
Question 27 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
4. Electricity and magnet...
4.5.4. Force on a current-carrying...

Describe an experiment to show that a force acts on a current-carrying conductor in a magnetic field, including the effect of reversing: (a) the current (b) the direction of the field

4. Electricity and magnet...
4.1. Simple phenomena of magnetism

State the differences between the properties of temporary magnets (made of soft iron) and the properties of permanent magnets (made of steel)

4. Electricity and magnet...
4.5.5. The d.c. motor

Know that a current-carrying coil in a magnetic field may experience a turning effect and that the turning effect is increased by increasing: (a) the number of turns on the coil (b) the current (c) the strength of the magnetic field