Question 28
Question 28 of 40
Question image for Q28
You can solve this MCQ to see its answer, but your attempt won't be logged unless you login
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...
4.5.1. Electromagnetic induction

Know that the direction of an induced e.m.f. opposes the change causing it

4. Electricity and magnet...
4.5.3. Magnetic effect of a current

Describe the effect on the magnetic field around straight wires and solenoids of changing the magnitude and direction of the current

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