Draw a simple circuit.Show the direction of currents.State reason for which the handle of tester is made of glass whereas the remaining part is of metal
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tester is made up of metal as it is a good conductor of electricity whereas handle of tester is made up of glass because Test tester intended for general electric work and it's handle is usually made of glass, for its relative resistance to heat. Tester made from expansion-resistant glasses, mostly borosilicate glass or fused quartz, can withstand high temperatures up to several hundred degrees Celsius.
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