A long wire lies in a magnetic field of such that it makes an angle of with the field

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Magnetism and Electromagnetism · Magnetism and Electromagnetism

Problem

0.30\,\text{m}

long wire lies in a magnetic field of

0.20\,\text{T}

such that it makes an angle of

30^{\circ}

with the field. If the wire experiences a force of

0.12\,\text{N}

, what is the current in the wire? (a)

2\,\text{A}

(b)

8\,\text{A}

(c)

4\,\text{A}

(d)

1.2\,\text{A}