Good conductors have very low
Resistivity
Conductivity
e.m.f
Current
Which has conductivity more than good conductors and less than insulators?
Super conductors
Semiconductors
Metals
Liquids
One mega watt is equal to
103 W
106 W
100 W
1010 W
There is no super conductor at
Room temperature
Normal pressure
Normal resistance
Normal atmospheric condition
Which of the following statements does not represent ohm's law?
Current/potential difference =Constant
Potential difference/current
Potential difference=Current*resistance
Current=resistance * Potential difference
The material used for making the connection wires is
Carbon
Copper
Silicon
Iron
The obstruction to the flow of electric current is called
Potential
Charge
Resistance
Potential difference
The SI unit of current is
Coulomb
Ampere
Volt
Ohm
Bubbles of gas are given off at the wires in the acid because of the
Magnetic effect of current
Heating effect of current
Lighting effect of current
Chemical action of current
