CAPE Physics Unit 2 · 2008 (T&T) · Paper 1 · Question Q11

A current-carrying conductor of mass 2 \times 10^{-2}\text{ kg} carrying a current of 2.0\text{ A} is balanced in a magnetic field. If the length of the conductor is 8\text{ cm}, determine the magnetic field strength required.

1. (A)1.25 \times 10^{-5}\text{ T}
2. (B)1.25 \times 10^{-4}\text{ T}
3. (C)1.25 \times 10^{-1}\text{ T}
4. (D)1.25\text{ T}