A straight wire long carries a current of at right angles to a uniform magnetic field of

MATHEMATICS · Single correct · ISC · Mathematics · Physics · Magnetic Effects of Current and Magnetism

Problem

A straight wire

0.50\,\text{m}

long carries a current of

4.0\,\text{A}

at right angles to a uniform magnetic field of

0.20\,\text{T}

. Calculate the magnitude of the force acting on the wire. (a)

0.80\,\text{N}

(b)

2.0\,\text{N}

(c)

0.40\,\text{N}

(d)

0.20\,\text{N}

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