Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 355 · 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.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the pipe colour (d) the water pressure
2. 2.True or false: resistance is measured in watts (W). (a) False (b) True
3. 3.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
4. 4.📏 Which unit measures energy used each second? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
5. 5.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water pressure (c) the tap handle (d) the water tank lid
6. 6.📏 How many watts (W) is 2.8 kW?
7. 7.True or false: the push of a cell is measured in watts (W). (a) True (b) False
8. 8.📏 How many milliamperes (mA) is 1.78 A?
9. 9.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
10. 10.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
11. 11.📏 Which unit measures current? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
12. 12.Which of these is measured in volts (V)? (a) the flow of charge (b) voltage (c) energy used each second (d) how much a part resists
13. 13.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
14. 14.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
15. 15.📏 How many amperes (A) is 900 mA? =
16. 16.Which of these is measured in amperes (A)? (a) the push of a cell (b) power (c) the flow of charge (d) how much a part resists
17. 17.📏 How many amperes (A) is 1530 mA? =
18. 18.True or false: the voltmeter measures voltage. (a) False (b) True
19. 19.📏 How many ohms (Ω) is 8.2 kΩ?
20. 20.True or false: the voltmeter measures current. (a) True (b) False
21. 21.📏 How many milliamperes (mA) is 0.37 A?
22. 22.True or false: the push of a cell is measured in volts (V). (a) False (b) True
23. 23.📏 How many amperes (A) is 440 mA? =
24. 24.📏 How many milliamperes (mA) is 1.48 A?
25. 25.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
26. 26.Which of these is measured in ohms (Ω)? (a) power (b) the push of a cell (c) the flow of charge (d) resistance
27. 27.📏 How many kilo-ohms (kΩ) is 8200 Ω? =
28. 28.📏 How many amperes (A) is 2290 mA? =
29. 29.📏 Which unit measures resistance? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
30. 30.Which of these is measured in amperes (A)? (a) power (b) how much a part resists (c) voltage (d) current
31. 31.True or false: the ammeter measures voltage. (a) False (b) True
32. 32.True or false: resistance is measured in volts (V). (a) False (b) True
33. 33.True or false: the ammeter is joined across a part. (a) True (b) False
34. 34.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
35. 35.True or false: current is measured in amperes (A). (a) True (b) False
36. 36.True or false: current is measured in ohms (Ω). (a) False (b) True
37. 37.📏 How many ohms (Ω) is 9.9 kΩ?
38. 38.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
39. 39.📏 How many kilo-ohms (kΩ) is 6600 Ω? =
40. 40.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)

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