Two thick wires and tow thin wires, all of same material and same length from a squre in the
Channel: Doubtnut
Date: 2020-04-05

Two thick wires and tow thin wires, all of same material and same length from a squre in the three different ways P, Q and R as shown. The current flowing through the arrangement is i. Let `B_(P), B_(Q) and B_(R)` represent the magnetic field at the centre of square in the three cases, then