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asked in Switchgear And Protection by Expert (291k points)
Electrical contact materials used in switches, brushes and relays must possess 

 (A) high thermal conductivity and high melting point 

(B) Low thermal conductivity and low melting point 

 (C) High thermal conductivity and low melting point 

(D) Low thermal conductivity and high melting point.

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1 Answer

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answered by Expert (291k points)

Electrical contact materials used in switches, brushes and relays must possess high thermal conductivity and high melting point 

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