Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 750 · 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.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
2. 2.📏 How many kilowatts (kW) is 1600 W? =
3. 3.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
4. 4.📏 How many amperes (A) is 170 mA? =
5. 5.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
6. 6.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
7. 7.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) a bigger tank
8. 8.📏 How many amperes (A) is 2460 mA? =
9. 9.📏 How many kilowatts (kW) is 400 W? =
10. 10.📏 How many kilo-ohms (kΩ) is 2100 Ω? =
11. 11.Which of these is measured in watts (W)? (a) voltage (b) resistance (c) energy used each second (d) current
12. 12.📏 How many amperes (A) is 2700 mA? =
13. 13.True or false: the ammeter measures voltage. (a) True (b) False
14. 14.Which of these is measured in volts (V)? (a) how much a part resists (b) voltage (c) resistance (d) energy used each second
15. 15.📏 How many ohms (Ω) is 1.5 kΩ?
16. 16.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
17. 17.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
18. 18.Which of these is measured in amperes (A)? (a) resistance (b) current (c) energy used each second (d) the push of a cell
19. 19.True or false: the ammeter measures current. (a) True (b) False
20. 20.True or false: resistance is measured in volts (V). (a) True (b) False
21. 21.True or false: current is measured in amperes (A). (a) False (b) True
22. 22.📏 How many kilo-ohms (kΩ) is 1300 Ω? =
23. 23.True or false: resistance is measured in ohms (Ω). (a) False (b) True
24. 24.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water pressure (c) the water tank lid (d) the pipe colour
25. 25.📏 How many kilowatts (kW) is 1250 W? =
26. 26.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
27. 27.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
28. 28.📏 How many watts (W) is 4.8 kW?
29. 29.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
30. 30.📏 How many kilowatts (kW) is 3950 W? =
31. 31.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
32. 32.📏 How many watts (W) is 0.8 kW?
33. 33.True or false: current is measured in watts (W). (a) True (b) False
34. 34.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 1024 (d) 10
35. 35.📏 How many watts (W) is 1.1 kW?
36. 36.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
37. 37.True or false: the flow of charge is measured in volts (V). (a) True (b) False
38. 38.📏 How many amperes (A) is 250 mA? =
39. 39.True or false: power is measured in volts (V). (a) False (b) True
40. 40.📏 How many kilowatts (kW) is 2150 W? =

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