Question
Question: Current flows through uniform, square frames as shown in the figure. In which case is the magnetic f...
Current flows through uniform, square frames as shown in the figure. In which case is the magnetic field at the centre of the frame not zero?
A
B
C
D
Answer
Explanation
Solution
In arrangements (1), (2) and (4), the field at the centre due to the currents flowing in the square frames is zero the field here in option (3) due to the current flowing in and out of the frame is non zero.