Two coplanar concentric circular conductors made of same wire of same material and thickness connected to batteries of 20 V and 16V respectively and are of radii 5 cam and 10 cm respectively. If the resistance of inner coil is 4 ohm, find magnetic induction at centre O.

Asked by acv27joy | 16th Dec, 2018, 06:36: PM

Expert Answer:

Solution is attached . I am considering the direction of current in both the loop in same direction 

Answered by Ankit K | 16th Dec, 2018, 10:05: PM