Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 370 · 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 kilo-ohms (kΩ) is 8500 Ω? =
2. 2.True or false: the voltmeter is joined in series. (a) True (b) False
3. 3.Which of these is measured in volts (V)? (a) energy used each second (b) resistance (c) current (d) voltage
4. 4.📏 How many milliamperes (mA) is 0.83 A?
5. 5.📏 Which unit measures the flow of charge? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
6. 6.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
7. 7.📏 Which unit measures voltage? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
8. 8.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
9. 9.📏 How many watts (W) is 4 kW?
10. 10.True or false: the voltmeter is joined across a part. (a) True (b) False
11. 11.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
12. 12.📏 How many watts (W) is 0.5 kW?
13. 13.📏 How many amperes (A) is 850 mA? =
14. 14.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the flow of water (c) the pipe colour (d) a narrow pipe
15. 15.True or false: the ammeter is joined across a part. (a) False (b) True
16. 16.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 1000 (c) 10 (d) 100
17. 17.📏 Which unit measures power? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
18. 18.📏 How many amperes (A) is 1200 mA? =
19. 19.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 60 (d) 1000
20. 20.📏 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
21. 21.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
22. 22.📏 How many ohms (Ω) is 5.8 kΩ?
23. 23.Which of these is measured in watts (W)? (a) the push of a cell (b) resistance (c) energy used each second (d) how much a part resists
24. 24.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
25. 25.True or false: the ammeter measures current. (a) True (b) False
26. 26.True or false: voltage is measured in amperes (A). (a) True (b) False
27. 27.True or false: the voltmeter measures voltage. (a) True (b) False
28. 28.📏 How many watts (W) is 2.8 kW?
29. 29.Which of these is measured in ohms (Ω)? (a) current (b) voltage (c) the flow of charge (d) resistance
30. 30.📏 How many amperes (A) is 2260 mA? =
31. 31.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
32. 32.True or false: the ammeter measures voltage. (a) True (b) False
33. 33.📏 How many kilowatts (kW) is 1050 W? =
34. 34.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
35. 35.📏 How many amperes (A) is 1110 mA? =
36. 36.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
37. 37.True or false: energy used each second is measured in watts (W). (a) True (b) False
38. 38.True or false: the push of a cell is measured in watts (W). (a) True (b) False
39. 39.📏 How many amperes (A) is 1910 mA? =
40. 40.True or false: how much a part resists is measured in volts (V). (a) False (b) True

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