1-7. What are the missing words in this paragraph?
| The flow of electricity round a ciruit is the
. |
| The 'kick' given by the battery is the
. |
| Tiny
are actually flowing through the wires, and in metallic |
| conductors these are
. |
| These actually flow
because they are |
|
charges. |
| However on a diagram the 'conventional' current is still drawn flowing
. |
|
8.Which of these answers gives the correct way of connecting each meter?
| |
Ammeter |
Voltmeter |
| A) |
Series |
Series |
| B) |
Parallel |
Parallel |
| C) |
Series |
Parallel |
| D) |
Parallel |
Series |
|
|
| A student is experimenting with identical bulbs and 6V cells.
The bulb in this circuit has a current of 2A passing through it when connected to a single 6V cell as shown.
What are the currents in the following circuits using the same bulbs and cells? |
|
| 9. |
 |
|
| 10. |
 |
|
|
|
11. Which of these circuits will draw the largest current from a cell? Assume all bulbs are identical.
- A) 2 bulbs in parallel
- B) 2 bulbs in series
- C) 3 bulbs in series
- D) 1 bulb on its own
|
|
12. What is the correct name for the unit for measuring resistance?
- A) amp
- B) volt
- C) coulomb
- D) ohm
|
|
| The table below shows measurements taken on a selection of resistors. What are the missing values?
| |
Voltage (V) |
Current (A) |
Resistance (Ω) |
| 13. |
12 |
4 |
|
| 14. |
60 |
|
2000 |
| 15. |
|
0.5 |
60 |
| 16. |
|
500 |
0.01 |
|
|
| A computer circuit board contains a 4kΩ resistor and has a p.d. of 8V across it. |
|
17. what does p.d. stand for?
- A) potential difference
- B) potential divider
- C) power difference
- D) power divider
|
| |
18. What is the current through the resistor?
- A) 2 mA
- B) 2 A
- C) 16 mA
- D) 16 A
|
| |
19. Whic type of circuit is more suitable for the following 2 applications:
|
A switch to turn a motor on and off.
The motor and switch are in... |
Domestic lighting.
All lights are wired in... |
| A) |
series |
series |
| B) |
series |
parallel |
| C) |
parallel |
series |
| D) |
parallel |
parallel |
|
| |
20. To get a large current to flow in a buzzer, you can either
- A) Increase the resistance or increase the voltage.
- B) Increase the resistance or decrease the voltage.
- C) Decrease the resistance or increase the voltage.
- D) Decrease the resistance or decrease the voltage.
|
| |
|
|
