An electric lamp whose resistance is 30Ω and a conductor of 4Ω resistance,one end is connected with each other and another end is connected to a 6V battery. Calculate the total resistance of the circuit.?
34
3.4
0.3
1200
SI unit of specific resistance is
ohm m
(ohm)-1
(ohm m)2
ohm m-1
Name the commercial unit of electric energy.
kilowatt hour
joule
watt
erg
The unit for expressing electric power is :
volt
coulomb
The reciprocal of a resistance of a conductor is
Conductance
Capacitance
Conductivity
Impedance
Pick the odd one out.
Ammeter
Voltmeter
Rheostat
Odometer
The work done in moving a unit charge across two points in an electric circuit is a measure of :
Current
Potential difference
Resistance
Power
When an electric lamp is connected to 12 V battery,it draws a current of 0.5 A.The power of the lamp is :
0.5 W
6 W
12 W
24 W
Which unit is used to measure the electric current?
Ampere
Volt
Coulomb
Watt
The heat produced by passing an electric current through a fixed resistor is proportional to the square of:
magnitude of resistance of the resistor
temperature of the resistor
magnitude of current
time for which current is passed
