Two thick wires and two thin wires, all of the same materais and same length from a square in
Channel: Doubtnut
Date: 2020-01-19

Two thick wires and two thin wires, all of the same materais and same length from a square in the three differenct ways, `P,Q` and `R` as shwon in figure with current connection shown, the magneitc feidl at the centre of the square is zero in cases.