?Which of the following is not the cause of low conductivity of electrolyte
1). Low drift velocity of ions
2). High resistance offered by the solution of the motion of ions
3). Low number of density of charge carriers
4). ?Ionization of salt?
Metals are good conductor of heat?than insulator because
1). their atoms are relatively aprt
2). they contain free electron
3). they have reflecting surface?
4). none of these
If ahigh power heater is connected to electric mains, then the bulbs in the house become dim because there is a
1). current drop
2). potential drop?
3). no current drop
4). no potential drop
Fuse wire should have
1). low resistance, high melting point?
2). low resistance, low melting point
3). high resistance, low melting point
4). high resistance, high melting point?
Current provided by a battery is maximum when
1). internal resistance is equal to external resistance
2). ?internal resistance is greater than external resistance
3). internal resistance is less than external?resistance
4). none of these