A straight wire long placed in a uniform magnetic field of strength experiences a…

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

Problem

A straight wire

40\,\text{cm}

long placed in a uniform magnetic field of strength

0.50\,\text{T}

experiences a force of

0.80\,\text{N}

when it makes an angle of

60^\circ

with the field. Determine the current flowing through the wire. (a)

6.7\,\text{A}

(b)

4.6\,\text{A}

(c)

8.0\,\text{A}

(d)

4.0\,\text{A}

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