Two circular coils P & Q are coaxially & carry currents `I_1` and `I_2` respectively
Channel: Doubtnut
Date: 2020-04-12

Two circular coils P & Q are coaxially & carry currents `I_1` and `I_2` respectively (all direction are w.r.t. the observer)  img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_PHY_RK_JM_FT2_E01_1332_Q01.png" width="80%"