GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Solution. A magnetic field has both a direction and a magnitude. The north pole of the compass needle’s movement inside the magnetic field is taken to indicate the magnetic field’s direction. The field lines are assumed to arise from the North Pole and combine at the South Pole as a result of convention.
Detailed explanation-2: -The magnetic field is a vector quantity because it has both magnitude and the direction.
Detailed explanation-3: -We can use the equation E = k | Q | r 2 E = k | Q | r 2 to find the magnitude of the electric field. The direction of the electric field is determined by the sign of the charge, which is negative in this case.
Detailed explanation-4: -A vector is a quantity that has both magnitude and direction.