ICSE Class 10 Physics 2018 Solved Paper

The diagram shows a coil wound around a $U$ shape soft iron bar $A B$ .

Question : 69 of 78

Marks: +1, -0

What is the polarity induced at the ends

A

and

B

when the switch is pressed?

Solution:

The polarity induced at A is South Pole.
The polarity induced at B is North Pole.

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