Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 881 · 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 ohms (Ω) is 4.6 kΩ?
2. 2.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) the push of a cell (c) how much a part resists (d) energy used each second
3. 3.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) the flow of water (d) a narrow pipe
4. 4.📏 How many kilowatts (kW) is 4450 W? =
5. 5.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
6. 6.📏 How many kilowatts (kW) is 650 W? =
7. 7.True or false: voltage is measured in volts (V). (a) False (b) True
8. 8.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
9. 9.True or false: the ammeter is joined across a part. (a) False (b) True
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
11. 11.True or false: the voltmeter is joined in series. (a) False (b) True
12. 12.📏 Which unit measures power? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
13. 13.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
14. 14.📏 How many amperes (A) is 2830 mA? =
15. 15.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 1000 (d) 60
16. 16.📏 How many ohms (Ω) is 6.9 kΩ?
17. 17.True or false: energy used each second is measured in watts (W). (a) False (b) True
18. 18.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
19. 19.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
20. 20.📏 How many amperes (A) is 750 mA? =
21. 21.True or false: power is measured in ohms (Ω). (a) True (b) False
22. 22.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the pipe colour (c) the water tank lid (d) the tap handle
23. 23.Which of these is measured in amperes (A)? (a) power (b) resistance (c) current (d) the push of a cell
24. 24.True or false: how much a part resists is measured in watts (W). (a) False (b) True
25. 25.📏 How many kilo-ohms (kΩ) is 2200 Ω? =
26. 26.📏 How many amperes (A) is 1560 mA? =
27. 27.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
28. 28.True or false: power is measured in watts (W). (a) True (b) False
29. 29.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
30. 30.📏 Which unit measures current? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
31. 31.Which of these is measured in volts (V)? (a) how much a part resists (b) power (c) current (d) the push of a cell
32. 32.📏 How many watts (W) is 0.6 kW?
33. 33.True or false: voltage is measured in amperes (A). (a) False (b) True
34. 34.Which of these is measured in watts (W)? (a) voltage (b) resistance (c) the push of a cell (d) energy used each second
35. 35.📏 How many kilowatts (kW) is 4700 W? =
36. 36.True or false: energy used each second is measured in amperes (A). (a) True (b) False
37. 37.📏 How many kilo-ohms (kΩ) is 3000 Ω? =
38. 38.📏 How many ohms (Ω) is 6.7 kΩ?
39. 39.True or false: the flow of charge is measured in watts (W). (a) False (b) True
40. 40.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 100 (d) 1024

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