QuestionPhysics / magnetism
Which one of the following is NOT a unit of magnetic field strength?
- (a) Tesla
- (b) Gauss
- (c) Ampere - metre
- (d) Ampere/metre
Answer: (c) Ampere - metre
Units of B: tesla (SI), gauss (CGS; 1 T = 10⁴ G). H (magnetising field) is in A/m. Ampere-metre (A·m) is the unit of pole strength, not field strength.