The SI unit of current is
Coulomb
Ampere
Volt
Ohm
Which is the cause of flow of electric current in the conductor?
Charge
Potential difference
Resistance
Power
Insulators have very high
Resistivity
Conductivity
e.m.f
Current
The current is the same at all points in a
Series circuit
Parallel circuit
All circuits
In LED circuit
The unit of p.d is
A wire of resistance R is doubled on itself.Its new resistance will be:
R
2R
R/2
1/4 R
The material used for making the connection wires is
Carbon
Copper
Silicon
Iron
The bulb lights due to a small wire in it because of the
Heating effect of current
Lighting effect of current
Both (a) and (b)
Chemical effect of current
Two parallel metal plates separated by an insulator is called the
Resistor
Capacitor
Switch
Circuit