Two long parallel conductors are placed at right angles to a metre scale at the 2 cm and 6 cm marks as shown in the figure They carry currents of 1 A and 3 A respectively. They will produce zero magnetic field at (ignore earth's magnetic field)

Question

Two long parallel conductors are placed at right angles to a metre scale at the 2 cm and 6 cm marks as shown in the figure They carry currents of 1 A and 3 A respectively. They will produce zero magnetic field at (ignore earth's magnetic field), 5 cm mark, 3 cm mark, 1 cm mark, 8 cm mark

MARKS App · Accepted Answer

Here, x is the distance from the 2 cm mark. μ o I 1 2 π x = μ o I 2 2 π ( 4 − x ) ( 4 − x ) × 1 = x × 3 4 − x = 3 x 4 = 4 x ⇒ x = 1

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