Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 86 · 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 3.6 kΩ?
2. 2.Which of these is measured in watts (W)? (a) current (b) resistance (c) energy used each second (d) voltage
3. 3.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the pipe colour (c) the water tank lid (d) the water pressure
4. 4.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
5. 5.Which of these is measured in amperes (A)? (a) how much a part resists (b) resistance (c) the flow of charge (d) the push of a cell
6. 6.📏 How many kilowatts (kW) is 200 W? =
7. 7.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
8. 8.True or false: current is measured in amperes (A). (a) False (b) True
9. 9.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the flow of water (c) a narrow pipe (d) the water pressure
10. 10.📏 How many watts (W) is 4.4 kW?
11. 11.📏 How many kilowatts (kW) is 2100 W? =
12. 12.📏 How many amperes (A) is 1830 mA? =
13. 13.📏 How many amperes (A) is 1820 mA? =
14. 14.True or false: the voltmeter is joined in series. (a) True (b) False
15. 15.Which of these is measured in watts (W)? (a) the push of a cell (b) resistance (c) power (d) how much a part resists
16. 16.📏 How many amperes (A) is 1350 mA? =
17. 17.True or false: the flow of charge is measured in watts (W). (a) False (b) True
18. 18.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
19. 19.True or false: voltage is measured in volts (V). (a) False (b) True
20. 20.📏 How many kilowatts (kW) is 1750 W? =
21. 21.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 100 (d) 1000
22. 22.📏 How many amperes (A) is 910 mA? =
23. 23.📏 Which unit measures voltage? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
24. 24.📏 Which unit measures power? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
25. 25.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
26. 26.True or false: the ammeter measures voltage. (a) False (b) True
27. 27.📏 How many kilowatts (kW) is 1950 W? =
28. 28.📏 Which unit measures resistance? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
29. 29.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
30. 30.📏 How many watts (W) is 1.3 kW?
31. 31.📏 How many milliamperes (mA) is 2.41 A?
32. 32.True or false: the ammeter is joined in series. (a) False (b) True
33. 33.📏 How many watts (W) is 4.3 kW?
34. 34.📏 How many kilo-ohms (kΩ) is 5500 Ω? =
35. 35.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
36. 36.True or false: the voltmeter is joined across a part. (a) True (b) False
37. 37.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
38. 38.📏 How many amperes (A) is 2620 mA? =
39. 39.Which of these is measured in ohms (Ω)? (a) resistance (b) power (c) current (d) the flow of charge
40. 40.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) the push of a cell (c) energy used each second (d) how much a part resists

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