Physics · Magnetic Effects of Electric Current
Which of the following describes the basic working principle of an electric motor?
- 1A current-carrying coil experiences a torque when placed in a magnetic field✓
- 2A current-carrying coil experiences a force in a purely gravitational field
- 3Electromagnetic induction generating an electromotive force
- 4A current-carrying coil experiences a force due to an electrostatic field only
Correct answer
A current-carrying coil experiences a torque when placed in a magnetic field
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