Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 769 · 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: the ammeter is joined across a part. (a) True (b) False
2. 2.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
3. 3.📏 How many watts (W) is 4.9 kW?
4. 4.Which of these is measured in amperes (A)? (a) power (b) energy used each second (c) resistance (d) current
5. 5.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
6. 6.📏 Which unit measures power? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
7. 7.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
8. 8.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
9. 9.True or false: the voltmeter is joined in series. (a) True (b) False
10. 10.📏 Which unit measures the flow of charge? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
11. 11.True or false: the ammeter measures current. (a) False (b) True
12. 12.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
13. 13.True or false: the ammeter is joined in series. (a) False (b) True
14. 14.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
15. 15.📏 How many ohms (Ω) is 4.5 kΩ?
16. 16.True or false: the voltmeter is joined across a part. (a) True (b) False
17. 17.📏 How many milliamperes (mA) is 1.11 A?
18. 18.📏 How many kilo-ohms (kΩ) is 1200 Ω? =
19. 19.📏 How many amperes (A) is 70 mA? =
20. 20.📏 How many watts (W) is 2.7 kW?
21. 21.Which of these is measured in volts (V)? (a) power (b) resistance (c) the push of a cell (d) energy used each second
22. 22.True or false: the voltmeter measures voltage. (a) False (b) True
23. 23.Which of these is measured in watts (W)? (a) voltage (b) energy used each second (c) how much a part resists (d) the flow of charge
24. 24.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
25. 25.Which of these is measured in amperes (A)? (a) the flow of charge (b) energy used each second (c) resistance (d) power
26. 26.📏 How many amperes (A) is 2480 mA? =
27. 27.📏 How many ohms (Ω) is 5.3 kΩ?
28. 28.True or false: energy used each second is measured in watts (W). (a) True (b) False
29. 29.📏 How many ohms (Ω) is 7 kΩ?
30. 30.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 1000 (c) 10 (d) 100
31. 31.📏 Which unit measures how much a part resists? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
32. 32.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 100 (d) 1000
33. 33.📏 How many amperes (A) is 2770 mA? =
34. 34.📏 How many kilo-ohms (kΩ) is 3600 Ω? =
35. 35.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
36. 36.True or false: the push of a cell is measured in volts (V). (a) True (b) False
37. 37.True or false: current is measured in amperes (A). (a) True (b) False
38. 38.📏 How many kilowatts (kW) is 5000 W? =
39. 39.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) how much a part resists (c) voltage (d) the flow of charge
40. 40.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the pipe colour (d) the water pressure

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