Questions
The amount of work done in Joules, when one unit electric charge moves from one point to another point in an electric circuit is known as
- potential difference
- electric current
- electric resistance
- electric inductance
- electric conductance
If two parallel-connected resistors dissipate 6 watts and 10 watts of power, then what is the total power loss?
- 60 W
- 0.6 W
- 16 W
- 1.66 W
- 166 W
A torch bulb draws a current of 0.2 A from a source of 2 V and glows. Calculate resistance of the torch bulb.
- 0.1Ω
- 0.4Ω
- 0.04Ω
- 10Ω
- 1Ω
If 200 J of energy is used in 10 s, then calculate the power.
- 20 W
- 0.05 W
- 2000 W
- 0.33 W
- 120 KW
If a lamp consumes 40 W in an hour and remains on for 1750 h, then calculate the kilowatt-hour consumption.
- 70,000 kwh
- 70 kwh
- 700 kwh
- 43750 kwh
- 4375 kwh
What is the circuit current, if a 5 V, 60 Hz voltage is applied to 4.7 microF capacitor?
- 112.93 A
- 8.85 mA
- 0.94 mA
- 2823.3 A
- 23.5 mA
What is the current in the wire every 2.0 seconds, if 10 C charge flows through it?
- 0.2 A
- 5 A
- 20 A
- 1200 A
- 12 A
A bulb of resistance 22Ω is joined to a battery of 12 V. What is the value of the resistance to be connected in series, with the bulb in order to get current of 0.5 A?
- 23.95Ω
- 2Ω
- 18Ω
- 30Ω
- 46Ω
What is the inductive reactance, if frequency is 120 kHz, L is 10 m H?
- 7536 ohm
- 2400 ohm
- 62.8 m ohm
- 753.6 k ohm
- 7536 micro ohm
The total opposition to the flow of current in a series RC circuit is called __________.
- inductance
- reactance
- impedance
- conductance
- capacitance
How we can write capacitor value 102?
- 10,0000 pF
- 10000 pF
- 1000 pF
- 1 uf
- 1,000,000 pF
If current is 400 mA and 200 ohm is the resistance, then calculate the power.
- 32 W
- 200 W
- 32 MW
- 0.0008 W
- 1250 W
Give the name of device, which cannot consists of a coil?
- Hartley oscillators
- Solenoid
- Relay
- Radio-receivers
- Transformers
If battery has emf of 12 V with internal resistance as 5.0 x 10-2 W and the current of 90 A, then what is the terminal voltage of the battery?
- 7.5 V
- 11.95 V
- 4.5 V
- 16.5 V
- 12.05 V
If voltage is 12 V and the current through it is 500 micro A, then calculate the resistor value.
- 24 k ohm
- 24 micro ohm
- 6000 micro ohm
- 41.66 micro ohm
- 41.66 ohm
Calculate the current in a 60 W bulb plugged into a 120 V outlet.
- 0.5 A
- 2 A
- 7200 A
- 1.0 A
- 14400 A