Physics
Grade-10
Easy
Question
A magnetic field exerts no force on
- An electric charge moving perpendicular to its direction
- An unmagnetized iron bar
- A stationary charge
- A magnet
Hint:
A stationary charge
The correct answer is: A stationary charge
Stationery charge cannot develop or experience magnetic field from other magnetic fields as moving charges give rise to the current which is responsible for magnetic effects but stationary charge do not produce current.
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