Question

TRUE OR FALSE

1.charge will move in a conductor when there is a difference in potential between the ends of the conductor.
2.the unit of electric current is ampere.
3.most of the electricity we buy through power companies is dc current.
4.when you turn on a light,electrons move at speeds near the speed of light in order to light up the light bulb.
electrical outlets in our walls are a source of electrons to run electrical appliances.
6.Light bulbs connected in series,all carry the same current,regardless of their resistance.
7.in a series circuit,the total voltage drop across a series of resistors is the sum of voltage drops across each individual resistor.
8.in a parallel circuit, current in each branch is the same.
9.when resistor are arranged in parallel,their overall resistance is less than that of the smallest resistor.
10.A fuse of circuit breaker used in circuit is usually inserted in parallel.
11.the electron will flow to the wire that has less resistance
12.the electrical load such as bulb gives resistance in the circuit.
13.electrons can move in an open circuit.
14.the direction of the electron in the circuit is always from negative to positive.
15.electrons transfer energy from the positive to negative terminal of the battery.
16.the concept of series and parallel connections are combined in the house wiring.
17.in AC circuit,the direction of current is only one.
18.the connection of the appliances should be in series-parallel way to optimize the efficiency of the appliances.
19.switch is connected in series to the electrical load.
20.in case of heating the wire due to the movement of electrons in the circuit,the fuse breaks the circuit as a protection from fire.


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Answer 1

Explanation:

1. true
2. false
3. false
4. false
5. true
6. true
7. false
8. true
9. false
10. true
11. true
12. false
13. false
14. true
15. true
16. true
17. false
18. false
19. true
20. false

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