Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 493 · 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: voltage is measured in amperes (A). (a) True (b) False
2. 2.Which of these is measured in watts (W)? (a) resistance (b) how much a part resists (c) power (d) the push of a cell
3. 3.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
4. 4.True or false: the flow of charge is measured in watts (W). (a) True (b) False
5. 5.True or false: the voltmeter measures voltage. (a) True (b) False
6. 6.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
7. 7.📏 How many milliamperes (mA) is 2.57 A?
8. 8.📏 How many kilo-ohms (kΩ) is 1300 Ω? =
9. 9.True or false: resistance is measured in watts (W). (a) False (b) True
10. 10.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 100 (c) 60 (d) 10
11. 11.True or false: the voltmeter measures current. (a) False (b) True
12. 12.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
13. 13.True or false: power is measured in amperes (A). (a) False (b) True
14. 14.📏 How many amperes (A) is 2650 mA? =
15. 15.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
16. 16.Which of these is measured in watts (W)? (a) resistance (b) the push of a cell (c) voltage (d) energy used each second
17. 17.True or false: power is measured in volts (V). (a) True (b) False
18. 18.📏 How many ohms (Ω) is 1.5 kΩ?
19. 19.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
20. 20.📏 Which unit measures voltage? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
21. 21.Which of these is measured in volts (V)? (a) energy used each second (b) the push of a cell (c) resistance (d) how much a part resists
22. 22.True or false: the voltmeter is joined in series. (a) True (b) False
23. 23.True or false: the ammeter measures voltage. (a) False (b) True
24. 24.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
25. 25.True or false: current is measured in amperes (A). (a) False (b) True
26. 26.📏 How many amperes (A) is 570 mA? =
27. 27.📏 How many watts (W) is 2.8 kW?
28. 28.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) a narrow pipe (c) the flow of water (d) the pipe colour
29. 29.True or false: the voltmeter is joined across a part. (a) False (b) True
30. 30.📏 How many kilowatts (kW) is 1150 W? =
31. 31.📏 How many kilo-ohms (kΩ) is 1800 Ω? =
32. 32.📏 How many milliamperes (mA) is 0.06 A?
33. 33.📏 How many amperes (A) is 800 mA? =
34. 34.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) energy used each second (c) resistance (d) current
35. 35.Which of these is measured in amperes (A)? (a) power (b) the flow of charge (c) energy used each second (d) resistance
36. 36.True or false: power is measured in ohms (Ω). (a) True (b) False
37. 37.📏 How many kilo-ohms (kΩ) is 4400 Ω? =
38. 38.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1000 (c) 10 (d) 1024
39. 39.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
40. 40.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)

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