Lenz's Law, Eddy Currents & Induced Electric Field
In which of the following devices, the eddy current effect is not used?
Show answer and solution
Answer: (c)
- Magnetic braking and induction furnaces work on eddy currents; an electromagnet's core is linked to them too (laminated to reduce them).
- An electric heater works on Joule heating of a current passed directly through a resistive coil, not eddy currents.
- So the answer is (c) electric heater.