Electrical contact materials used in switches, brushes, relay must pos – McqOptions

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1.	Electrical contact materials used in switches, brushes, relay 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
Answer» B. low thermal conductivity and low melting point

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