alleryMagnetic field is a quantity that has:
ADirection and magnitude
BDirection but no magnitude
CMagnitude but no direction
DMass as well as magnitude
Answer & Solution
Correct answer: A. Direction and magnitude
1. Some physical quantities need both a size and a direction.
2. Magnetic field is a quantity that has both direction and magnitude.
3. Its direction is that in which the north pole of a compass needle moves.
_Source: syllabus Science, Ch 13 'Magnetic Effects of Electric Current'_
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