A 1 m long metal rod XY completes the circuit shown. The magnetic field is 0.15 T, the circuit resistance is 5 Ω and the rod moves at 4 m s⁻¹. The force required to maintain constant speed is ______ × 10⁻³ N. Image
Physics · Circular Motion
A 1 m long metal rod XY completes the circuit shown. The magnetic field is 0.15 T, the circuit resistance is 5 Ω and the rod moves at 4 m s⁻¹. The force required to maintain constant speed is ______ × 10⁻³ N. Image