Current Electricity In which of the following substances the resistance decreases with increase in temperature? Carbon Silver Constantan Copper Carbon Silver Constantan Copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The weight of an aluminium conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is 0.6 0.5 1.5 1 0.6 0.5 1.5 1 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of a material always decreases if Temperature of material is decreased None of these Temperature of material is increased Number of free electrons available becomes more Temperature of material is decreased None of these Temperature of material is increased Number of free electrons available becomes more ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Voltage dependent resistors are used To suppress surges As heating elements As current stabilizers For inductive circuits To suppress surges As heating elements As current stabilizers For inductive circuits ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of conductor varies inversely as Length Temperature Area of cross-section Resistivity Length Temperature Area of cross-section Resistivity ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which method can be used for absolute measurement of resistances? Wheastone bridge method Ohm's law method Lorentz method Releigh method Wheastone bridge method Ohm's law method Lorentz method Releigh method ANSWER DOWNLOAD EXAMIANS APP
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