CAPE Physics Unit 2 · 2017 · Paper 1 · Question Q13

A straight wire 1\text{ m} long is placed at an angle of 30^\circ in a magnetic field of flux density 0.2\text{ T}. It experiences a force of 0.5\text{ N}. What is the current in the wire?

1. (A)0.5\text{ A}
2. (B)1.0\text{ A}
3. (C)2.5\text{ A}
4. (D)5.0\text{ A}