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Materials and Components

Q1:

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

ANS:A - high thermal conductivity and high melting point

Heat generated at contact should be dissipated quickly and contact should not melt.



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