Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 26 · 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 1730 mA? =
2. 2.True or false: the voltmeter measures current. (a) True (b) False
3. 3.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
4. 4.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
5. 5.📏 Which unit measures the flow of charge? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
6. 6.Which of these is measured in volts (V)? (a) the flow of charge (b) energy used each second (c) power (d) voltage
7. 7.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
8. 8.True or false: resistance is measured in volts (V). (a) True (b) False
9. 9.📏 How many milliamperes (mA) is 0.23 A?
10. 10.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
11. 11.True or false: power is measured in ohms (Ω). (a) True (b) False
12. 12.📏 How many amperes (A) is 1230 mA? =
13. 13.True or false: how much a part resists is measured in watts (W). (a) True (b) False
14. 14.True or false: current is measured in watts (W). (a) False (b) True
15. 15.📏 Which unit measures resistance? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
16. 16.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
17. 17.True or false: current is measured in volts (V). (a) True (b) False
18. 18.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 1000 (c) 100 (d) 10
19. 19.True or false: the flow of charge is measured in watts (W). (a) False (b) True
20. 20.True or false: the voltmeter is joined across a part. (a) False (b) True
21. 21.📏 How many milliamperes (mA) is 1.72 A?
22. 22.📏 How many kilowatts (kW) is 4100 W? =
23. 23.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the tap handle (c) the pipe colour (d) the water tank lid
24. 24.True or false: resistance is measured in ohms (Ω). (a) False (b) True
25. 25.📏 How many amperes (A) is 150 mA? =
26. 26.Which of these is measured in amperes (A)? (a) current (b) energy used each second (c) power (d) resistance
27. 27.📏 How many ohms (Ω) is 4.2 kΩ?
28. 28.📏 How many ohms (Ω) is 6.3 kΩ?
29. 29.True or false: resistance is measured in watts (W). (a) True (b) False
30. 30.True or false: voltage is measured in ohms (Ω). (a) False (b) True
31. 31.📏 How many watts (W) is 0.6 kW?
32. 32.Which of these is measured in volts (V)? (a) how much a part resists (b) power (c) the flow of charge (d) the push of a cell
33. 33.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
34. 34.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
35. 35.Which of these is measured in watts (W)? (a) how much a part resists (b) energy used each second (c) current (d) voltage
36. 36.📏 How many watts (W) is 1.8 kW?
37. 37.Which of these is measured in amperes (A)? (a) power (b) the flow of charge (c) how much a part resists (d) resistance
38. 38.📏 How many kilowatts (kW) is 1750 W? =
39. 39.📏 How many ohms (Ω) is 8.1 kΩ?
40. 40.True or false: the ammeter is joined across a part. (a) True (b) False

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids