AB and CD are long straight conductors, distance d apart, carrying a c

1.	AB and CD are long straight conductors, distance d apart, carrying a current I. The magnetic field on BC due to the currents in AB and CD (a) is zero at all points (b) is zero only at its midpoint (c) has different magnitudes at different points (d) is maximum at its midpoint
Answer» Correct Answer is: (c) has different magnitudes at different points The sections AB and CD produce fields in the same direction at all points on BC. The magnitude of the field is variable, being a function of the distances from AB and CD. At the midpoint of BC, B = 2 x μ₀I/4π(d/2).

AB and CD are long straight conductors, distance d apart, carrying a current I. The magnetic field on BC due to the currents in AB and CD (a) is zero at all points (b) is zero only at its midpoint (c) has different magnitudes at different points (d) is maximum at its midpoint

Answer»

Correct Answer is: (c) has different magnitudes at different points

The sections AB and CD produce fields in the same direction at all points on BC. The magnitude of the field is variable, being a function of the distances from AB and CD.

At the midpoint of BC, B = 2 x μ₀I/4π(d/2).

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AB and CD are long straight conductors, distance d apart, carrying a current I. The magnetic field on BC due to the currents in AB and CD (a) is zero at all points (b) is zero only at its midpoint (c) has different magnitudes at different points (d) is maximum at its midpoint

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