Two thick wires and two thin wires, all of same material and same length, form a square in three different ways P , Q and R as shown in the figure. With correct connections shown, the magnetic field due to the current flow, at the centre of

Question

Two thick wires and two thin wires, all of same material and same length, form a square in three different ways P , Q and R as shown in the figure. With correct connections shown, the magnetic field due to the current flow, at the centre of the loop will be zero in case of

Quantrex Academy · Accepted Answer

Correct answer: D. P and R

In P and R , current divides equally in two halves because of equal resistances in the two halves. Due to equal currents in two halves the current at the centre will be zero.

Two thick wires and two thin wires, all of same material and same length, form a square in three different ways P , Q and R as shown in the figure. With correct connections shown, the magnetic field due to the current flow, at the centre of the loop will be zero in case of

Options

Correct answer

Step-by-step solution

More from Magnetic Effects of Current