Question
Physics Question on Electromagnetic induction
An aluminium ring B faces an electromagnet A.The current I through A can be altered
A
Whether I increases or decreases B will not experience any force
B
If I decreases, A will repel B
C
If I increases, A will attract B
D
If I increase, A will repel B.
Answer
If I increase, A will repel B.
Explanation
Solution
Increasing current will induce similar pole on the nearer face of the coil.