A force of acts on a straight wire of length kept perpendicular to a uniform magnetic…

MATHEMATICS · Single correct · ISC · Physics · Magnetic Effects of Current and Magnetism · Force on moving charges

Problem

A force of 0.32 N0.32\,\text{N} acts on a straight wire of length 40 cm40\,\text{cm} kept perpendicular to a uniform magnetic field of 80008000 gauss. Find the current in the wire. (a) 0.40 A0.40\,\text{A} (b) 1.0 A1.0\,\text{A} (c) 0.10 A0.10\,\text{A} (d) 10 A10\,\text{A}

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