Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 24 · 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.True or false: the voltmeter is joined across a part. (a) True (b) False
2. 2.📏 How many milliamperes (mA) is 0.1 A?
3. 3.📏 How many ohms (Ω) is 2.6 kΩ?
4. 4.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 1000 (d) 100
5. 5.📏 How many watts (W) is 1.3 kW?
6. 6.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
7. 7.📏 How many milliamperes (mA) is 0.83 A?
8. 8.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
9. 9.📏 How many amperes (A) is 750 mA? =
10. 10.True or false: the voltmeter measures voltage. (a) False (b) True
11. 11.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water tank lid (d) the water pressure
12. 12.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
13. 13.True or false: the ammeter measures voltage. (a) True (b) False
14. 14.📏 How many ohms (Ω) is 8.3 kΩ?
15. 15.Which of these is measured in watts (W)? (a) energy used each second (b) the flow of charge (c) how much a part resists (d) the push of a cell
16. 16.True or false: voltage is measured in watts (W). (a) False (b) True
17. 17.True or false: the ammeter measures current. (a) False (b) True
18. 18.Which of these is measured in watts (W)? (a) how much a part resists (b) power (c) current (d) voltage
19. 19.📏 How many watts (W) is 2.4 kW?
20. 20.📏 How many amperes (A) is 450 mA? =
21. 21.True or false: the flow of charge is measured in watts (W). (a) False (b) True
22. 22.📏 How many amperes (A) is 1630 mA? =
23. 23.📏 How many milliamperes (mA) is 0.4 A?
24. 24.True or false: voltage is measured in ohms (Ω). (a) False (b) True
25. 25.📏 How many milliamperes (mA) is 2.05 A?
26. 26.📏 Which unit measures current? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
27. 27.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
28. 28.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1000 (c) 10 (d) 1024
29. 29.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
30. 30.📏 How many kilowatts (kW) is 650 W? =
31. 31.Which of these is measured in volts (V)? (a) power (b) how much a part resists (c) current (d) voltage
32. 32.Which of these is measured in volts (V)? (a) the flow of charge (b) the push of a cell (c) how much a part resists (d) energy used each second
33. 33.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
34. 34.True or false: the push of a cell is measured in volts (V). (a) True (b) False
35. 35.True or false: the voltmeter measures current. (a) False (b) True
36. 36.📏 How many watts (W) is 0.7 kW?
37. 37.True or false: the voltmeter is joined in series. (a) False (b) True
38. 38.📏 How many ohms (Ω) is 9.9 kΩ?
39. 39.📏 How many ohms (Ω) is 5.5 kΩ?
40. 40.📏 How many watts (W) is 3.1 kW?

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