The two loops shown in the figure, have their planes parallel to each other. A clockwise current flows in the loop X as viewed from X towards Y. The two coils will repel each other, if the current in the loop X is:

  • Option 1)

    increasing

  • Option 2)

    decreasing

  • Option 3)

    constant

  • Option 4)

    none of the above cases

 

Answers (1)

As learnt in

Mutual Induction -

Whenever the current passing throug the coil or circuit changes, the magnetic flux linked with neighbouring coil or circuit will also change.

- wherein

 

  Two loops will repel each other when current in the two loops are in opposite sense. This will happen when current in loop Y will oppose the field produced by loop X, i.e. flux through loop Y is increasing or current in loop X is increasing.


Option 1)

increasing

This option is correct

Option 2)

decreasing

This option is incorrect

Option 3)

constant

This option is incorrect

Option 4)

none of the above cases

This option is incorrect

Preparation Products

Knockout BITSAT 2021

It is an exhaustive preparation module made exclusively for cracking BITSAT..

₹ 4999/- ₹ 2999/-
Buy Now
Knockout BITSAT-JEE Main 2021

An exhaustive E-learning program for the complete preparation of JEE Main and Bitsat.

₹ 27999/- ₹ 16999/-
Buy Now
Exams
Articles
Questions