Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 224 · 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.True or false: resistance is measured in volts (V). (a) False (b) True
2. 2.True or false: the voltmeter is joined across a part. (a) True (b) False
3. 3.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
4. 4.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
5. 5.📏 How many kilowatts (kW) is 1300 W? =
6. 6.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
7. 7.📏 How many amperes (A) is 600 mA? =
8. 8.📏 How many ohms (Ω) is 8.5 kΩ?
9. 9.📏 How many milliamperes (mA) is 1.03 A?
10. 10.Which of these is measured in volts (V)? (a) resistance (b) the push of a cell (c) power (d) the flow of charge
11. 11.Which of these is measured in ohms (Ω)? (a) resistance (b) voltage (c) power (d) current
12. 12.📏 How many kilo-ohms (kΩ) is 1700 Ω? =
13. 13.📏 How many watts (W) is 3.8 kW?
14. 14.True or false: the voltmeter is joined in series. (a) False (b) True
15. 15.True or false: the ammeter measures current. (a) False (b) True
16. 16.True or false: the push of a cell is measured in watts (W). (a) False (b) True
17. 17.📏 How many amperes (A) is 2350 mA? =
18. 18.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
19. 19.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water tank lid (d) the water pressure
20. 20.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
21. 21.True or false: the ammeter measures voltage. (a) True (b) False
22. 22.True or false: resistance is measured in ohms (Ω). (a) True (b) False
23. 23.True or false: resistance is measured in watts (W). (a) False (b) True
24. 24.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
25. 25.📏 How many amperes (A) is 2200 mA? =
26. 26.📏 How many milliamperes (mA) is 0.76 A?
27. 27.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
28. 28.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
29. 29.Which of these is measured in amperes (A)? (a) resistance (b) the push of a cell (c) power (d) current
30. 30.📏 How many watts (W) is 2.1 kW?
31. 31.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1000 (d) 1024
32. 32.True or false: current is measured in amperes (A). (a) False (b) True
33. 33.📏 How many ohms (Ω) is 10 kΩ?
34. 34.📏 Which unit measures resistance? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
35. 35.📏 How many amperes (A) is 1080 mA? =
36. 36.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a narrow pipe (c) a bigger tank (d) the water pressure
37. 37.📏 How many kilowatts (kW) is 700 W? =
38. 38.Which of these is measured in volts (V)? (a) voltage (b) resistance (c) how much a part resists (d) the flow of charge
39. 39.True or false: the voltmeter measures voltage. (a) False (b) True
40. 40.📏 How many milliamperes (mA) is 2.98 A?

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