Question

Answer This with reason!!

With reason please..

Answer 1

◆◆Option B◆◆

Magnetic field is directly proportional to the current pass through per unit Area.

Since in Fig.A resistance is R and in figure B equivalent resistance is R/2.
so, Current will pass more in Fig B than in A

hence stronger magnetic field will be in figure B.

That's why option B is correct.✔️✔️

Answer 2

Option B is correct

Because,

resistance in figure B is R/2 whereas resistance in figure A is R.

So, more current means strong magnetic field...