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Question 27
Question 27 of 40
Question image for Q27
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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...
4.5.3. Magnetic effect of a current

Describe the pattern and direction of the magnetic field due to currents in straight wires and in solenoids and state the effect on the magnetic field of changing the magnitude and direction of the current

4. Electricity and magnet...
4.1. Simple magnetism and magnetic...

Know that the relative strength of a magnetic field is represented by the spacing of the magnetic field lines