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
A region where an electric charge experiences a force due to other charges is called
An electric field
Magnetic field
Circuit
Insulators have very high
Resistivity
Conductivity
e.m.f
Current
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
For producing wind energy, the wind speed should be higher than
50 km/hr
15 km/hr
5 km/hr
1 km/hr
Resistivity of superconductor is
Greater than 1
One
Less than one
Zero
The phenomenon of radioactivity was discovered by
Otto Hahn
Henri Becquerel
Madame Marie curie
Rutherford
One coulomb is equivalent to
6 x 108 electrons
6 x1018 electrons
6 x 1010 electrons
6 x 1020 electrons
Unit of charge is
Ampere
Ohm
Coulomb
Volt
