An Electric Circuit
Trending Questions
Is the TV using direct current or alternating current?
- True
- False
A simple circuit consists of
plug pin and socket
power source
cell
conductors and switch
Which one of the following options makes a bulb to glow more brightly?
Bulb connected to 3 dry cells of 1.5 V each connected in series.
Bulb connected to 2 cells of 2 V each.
Bulb connected to 3 dry cells of 3 V each connected in series.
Bulb connected to one dry cell of 6 V.
- filament
- glass chamber
- electron tube
State the role of MCB in an electrical circuit. In what way it is better than a fuse?
- positive
- negative
- neutral
- external
- Fuse 2
- Both the fuses blow simultaneously.
- Fuse 1
- Neither of them will blow.
Emma connected a bulb to an electric circuit, after studying a circuit diagram, but it did not glow. Which of the following cannot be a valid reason for the bulb not glowing?
All of these
Neutral terminal of the cell
Positive terminal of the cell
Negative terminal of the cell
List two ways by which you can reduce consumption of electricity.
- positive
- negative
- inner
- outer
A safety device in an electric circuit
- False
- True
- The bulb's filament is broken.
- The circuit which should be closed is open instead.
- The battery is dead.
- Torch light bulbs cannot be used for this experiment.
- The bulb's filament is broken.
- The circuit which should be closed is open instead.
- The battery is dead.
- Torch light bulbs cannot be used for this experiment.
- Broken wire in the circuit
- Molten fuse wire
- Closed switch
- Properly connected wires
What is a circuit diagram?
A circuit diagram is a simplified representation of the conductors.
A circuit diagram is a simplified representation of all the components of an electrical circuit.
A circuit diagram is a simplified representation of batteries.
A circuit diagram is a simplified representation of switches and batteries.
In a bulb, electrical energy is converted into:
Heat energy
Mechanical energy
Light energy
Both Heat and Light energy
- Base
- Glass chamber
- Filament
- Conducting wire