Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 693 · 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 amperes (A) is 2140 mA? =
2. 2.📏 How many amperes (A) is 1700 mA? =
3. 3.True or false: the ammeter measures voltage. (a) False (b) True
4. 4.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
5. 5.True or false: the voltmeter measures current. (a) True (b) False
6. 6.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
7. 7.📏 How many kilowatts (kW) is 350 W? =
8. 8.True or false: voltage is measured in volts (V). (a) True (b) False
9. 9.📏 How many kilo-ohms (kΩ) is 3600 Ω? =
10. 10.Which of these is measured in volts (V)? (a) energy used each second (b) resistance (c) power (d) the push of a cell
11. 11.📏 Which unit measures energy used each second? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
12. 12.📏 How many amperes (A) is 960 mA? =
13. 13.📏 How many kilo-ohms (kΩ) is 3900 Ω? =
14. 14.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the water pressure (c) the pipe colour (d) the flow of water
15. 15.📏 How many kilowatts (kW) is 3550 W? =
16. 16.📏 How many ohms (Ω) is 8.3 kΩ?
17. 17.📏 How many watts (W) is 1.6 kW?
18. 18.True or false: the voltmeter measures voltage. (a) False (b) True
19. 19.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
20. 20.Which of these is measured in amperes (A)? (a) how much a part resists (b) the push of a cell (c) resistance (d) current
21. 21.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
22. 22.True or false: current is measured in volts (V). (a) False (b) True
23. 23.True or false: energy used each second is measured in watts (W). (a) False (b) True
24. 24.📏 How many watts (W) is 1.1 kW?
25. 25.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
26. 26.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 1000 (c) 60 (d) 100
27. 27.True or false: the ammeter measures current. (a) False (b) True
28. 28.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
29. 29.True or false: resistance is measured in volts (V). (a) False (b) True
30. 30.True or false: the push of a cell is measured in volts (V). (a) True (b) False
31. 31.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the water pressure (c) a bigger tank (d) the flow of water
32. 32.True or false: power is measured in watts (W). (a) True (b) False
33. 33.Which of these is measured in watts (W)? (a) the flow of charge (b) energy used each second (c) current (d) resistance
34. 34.📏 How many kilowatts (kW) is 3300 W? =
35. 35.📏 How many milliamperes (mA) is 1.72 A?
36. 36.📏 How many watts (W) is 1.9 kW?
37. 37.Which of these is measured in amperes (A)? (a) the flow of charge (b) power (c) voltage (d) resistance
38. 38.📏 How many milliamperes (mA) is 0.3 A?
39. 39.📏 How many amperes (A) is 2560 mA? =
40. 40.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter

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