When a body reflects entire radiation incident on it, then it is known as
A. White body
B. Grey body
C. Black body
D. Transparent body
Answer: Option A
A. White body
B. Grey body
C. Black body
D. Transparent body
Answer: Option A
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
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