For heating element high resistivity material is chosen to
A. Reduce the length of heating element
B. Increase the life of the heating element
C. Reduce the effect of oxidation
D. Produce large amount of heat
Answer: Option A
Related Questions on Heating and Welding
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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