Induction heating process is based on which of the following principles?
A. Thermal ion release principle
B. Nucleate heating principle
C. Resistance heating principle
D. Electromagnetic induction principle
Answer: Option D
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A. To avoid initial rush of current
B. To avoid change in kW rating with temperature
C. Both (A) and (B)
D. Either (A) or (B)
The material of the heating element for a furnace should have
A. Lower melting point
B. Higher temperature coefficient
C. High specific resistance
D. All of the above
In induction heating __________ is abnormally high.
A. Phase angle
B. Frequency
C. Current
D. Voltage
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