Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 531 · 40 questions

Remember (Push, flow, resist): Voltage → volts (V), current → amperes (A), resistance → ohms (Ω), power → watts (W). milli (m) = ÷ 1000 and kilo (k) = × 1000: 250 mA = 0.25 A, 2.2 kΩ = 2200 Ω. Voltmeter across a part; ammeter in series.

1. 1.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 100 (c) 10 (d) 1000
2. 2.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
3. 3.📏 Which unit measures power? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
4. 4.Which of these is measured in watts (W)? (a) current (b) power (c) resistance (d) voltage
5. 5.True or false: the push of a cell is measured in volts (V). (a) False (b) True
6. 6.True or false: the ammeter is joined across a part. (a) False (b) True
7. 7.Which of these is measured in ohms (Ω)? (a) resistance (b) the push of a cell (c) power (d) current
8. 8.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
9. 9.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
10. 10.Which of these is measured in watts (W)? (a) energy used each second (b) voltage (c) how much a part resists (d) current
11. 11.📏 How many ohms (Ω) is 5.7 kΩ?
12. 12.📏 How many kilo-ohms (kΩ) is 1700 Ω? =
13. 13.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the pipe colour (c) a narrow pipe (d) the flow of water
14. 14.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
15. 15.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the pipe colour (c) the tap handle (d) the water tank lid
16. 16.Which of these is measured in amperes (A)? (a) energy used each second (b) the flow of charge (c) power (d) how much a part resists
17. 17.True or false: the ammeter is joined in series. (a) False (b) True
18. 18.📏 How many amperes (A) is 2730 mA? =
19. 19.📏 How many milliamperes (mA) is 1.15 A?
20. 20.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a narrow pipe (c) a bigger tank (d) the water pressure
21. 21.True or false: the ammeter measures current. (a) True (b) False
22. 22.📏 How many ohms (Ω) is 9 kΩ?
23. 23.📏 How many milliamperes (mA) is 0.53 A?
24. 24.True or false: current is measured in amperes (A). (a) False (b) True
25. 25.📏 How many kilo-ohms (kΩ) is 2600 Ω? =
26. 26.📏 How many kilo-ohms (kΩ) is 2400 Ω? =
27. 27.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
28. 28.📏 How many watts (W) is 1.8 kW?
29. 29.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
30. 30.True or false: the voltmeter measures current. (a) True (b) False
31. 31.📏 Which unit measures resistance? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
32. 32.📏 How many kilowatts (kW) is 500 W? =
33. 33.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 1000 (d) 100
34. 34.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
35. 35.Which of these is measured in amperes (A)? (a) power (b) voltage (c) current (d) the push of a cell
36. 36.True or false: the voltmeter is joined in series. (a) True (b) False
37. 37.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
38. 38.📏 How many watts (W) is 0.2 kW?
39. 39.📏 How many watts (W) is 1.7 kW?
40. 40.True or false: power is measured in watts (W). (a) True (b) False

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