In electric press, mica is used because it is _______ conductor of heat but/and________ conductor of electricity.

A. T B. T² C. T³ D. T⁴

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)

A. Lower melting point B. Higher temperature coefficient C. High specific resistance D. All of the above

A. Phase angle B. Frequency C. Current D. Voltage