Resistivity of superconductor is
Greater than 1
One
Less than one
Zero
Insulators have very high
Resistivity
Conductivity
e.m.f
Current
One kilowatt is equal to
103 w
106 w
100 w
10 w
A current 0.5 A is drawn by a filament of an electric bulb for 5 s. Find the amount of electric charge that flows through the circuit ?
5 C
25 C
2.5 C
None of these
Which of the following is the cause of flow of electric current in the conductor?
Charge
Potential difference
Resistance
Power
The current is the same at all points in a
Series circuit
Parallel circuit
All circuits
Can't be predicted
One coulomb is equivalent to
6 x 108 electrons
6 x1018 electrons
6 x 1010 electrons
6 x 1020 electrons
Which of the following instrument is used to measure current in a circuit?
Volt meter
Rheostat
Ammeter
Battery
The unit of resistance is
Ampere
Ohm
Coulomb
Volt
Fossil fuel is a
Renewable source of energy
Non-renewable source of energy
Kind of electrical energy
Hydro electric energy
