Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 204 · 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.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
2. 2.📏 How many amperes (A) is 1930 mA? =
3. 3.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the water pressure (d) the pipe colour
4. 4.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
5. 5.Which of these is measured in amperes (A)? (a) power (b) current (c) resistance (d) the push of a cell
6. 6.True or false: power is measured in watts (W). (a) True (b) False
7. 7.📏 How many kilowatts (kW) is 1600 W? =
8. 8.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
9. 9.Which of these is measured in watts (W)? (a) power (b) the flow of charge (c) how much a part resists (d) the push of a cell
10. 10.Which of these is measured in volts (V)? (a) voltage (b) the flow of charge (c) current (d) how much a part resists
11. 11.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
12. 12.True or false: the voltmeter measures current. (a) False (b) True
13. 13.📏 How many ohms (Ω) is 8.2 kΩ?
14. 14.📏 How many kilo-ohms (kΩ) is 7700 Ω? =
15. 15.True or false: resistance is measured in watts (W). (a) True (b) False
16. 16.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
17. 17.📏 How many kilowatts (kW) is 1800 W? =
18. 18.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
19. 19.True or false: the ammeter is joined in series. (a) True (b) False
20. 20.📏 How many amperes (A) is 560 mA? =
21. 21.True or false: the voltmeter is joined across a part. (a) True (b) False
22. 22.📏 Which unit measures energy used each second? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
23. 23.Which of these is measured in volts (V)? (a) resistance (b) current (c) the push of a cell (d) the flow of charge
24. 24.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 100 (d) 1000
25. 25.Which of these is measured in amperes (A)? (a) how much a part resists (b) energy used each second (c) resistance (d) the flow of charge
26. 26.True or false: the voltmeter is joined in series. (a) False (b) True
27. 27.📏 How many amperes (A) is 2810 mA? =
28. 28.True or false: voltage is measured in amperes (A). (a) True (b) False
29. 29.📏 How many kilowatts (kW) is 3700 W? =
30. 30.True or false: how much a part resists is measured in volts (V). (a) True (b) False
31. 31.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
32. 32.True or false: current is measured in ohms (Ω). (a) True (b) False
33. 33.True or false: current is measured in amperes (A). (a) True (b) False
34. 34.📏 How many kilowatts (kW) is 3650 W? =
35. 35.📏 How many kilo-ohms (kΩ) is 5600 Ω? =
36. 36.True or false: power is measured in ohms (Ω). (a) True (b) False
37. 37.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
38. 38.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
39. 39.True or false: the ammeter measures voltage. (a) False (b) True
40. 40.True or false: voltage is measured in ohms (Ω). (a) True (b) False

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