Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 912 · 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 current? (a) voltmeter (b) ammeter
2. 2.True or false: the flow of charge is measured in ohms (Ω). (a) True (b) False
3. 3.Which of these is measured in volts (V)? (a) energy used each second (b) resistance (c) the flow of charge (d) voltage
4. 4.True or false: the flow of charge is measured in watts (W). (a) False (b) True
5. 5.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
6. 6.📏 How many kilo-ohms (kΩ) is 4300 Ω? =
7. 7.📏 Which unit measures the flow of charge? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
8. 8.True or false: the voltmeter is joined across a part. (a) False (b) True
9. 9.📏 How many watts (W) is 4.6 kW?
10. 10.True or false: the ammeter is joined across a part. (a) True (b) False
11. 11.📏 How many amperes (A) is 580 mA? =
12. 12.📏 How many amperes (A) is 2240 mA? =
13. 13.📏 Which unit measures energy used each second? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
14. 14.True or false: the ammeter is joined in series. (a) False (b) True
15. 15.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
16. 16.True or false: the ammeter measures current. (a) True (b) False
17. 17.Which of these is measured in volts (V)? (a) the flow of charge (b) current (c) the push of a cell (d) how much a part resists
18. 18.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) a narrow pipe (c) the flow of water (d) the water pressure
19. 19.📏 How many amperes (A) is 1490 mA? =
20. 20.📏 Which unit measures the push of a cell? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
21. 21.True or false: the ammeter measures voltage. (a) True (b) False
22. 22.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the tap handle (d) the pipe colour
23. 23.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a bigger tank (c) a narrow pipe (d) the water pressure
24. 24.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
25. 25.📏 How many watts (W) is 3.3 kW?
26. 26.📏 How many watts (W) is 3.7 kW?
27. 27.Which of these is measured in watts (W)? (a) power (b) the push of a cell (c) current (d) voltage
28. 28.True or false: current is measured in volts (V). (a) False (b) True
29. 29.📏 How many amperes (A) is 710 mA? =
30. 30.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
31. 31.📏 How many milliamperes (mA) is 1.18 A?
32. 32.📏 How many milliamperes (mA) is 1.02 A?
33. 33.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 60 (d) 10
34. 34.Which of these is measured in ohms (Ω)? (a) resistance (b) the flow of charge (c) power (d) voltage
35. 35.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
36. 36.True or false: the voltmeter measures voltage. (a) True (b) False
37. 37.True or false: voltage is measured in volts (V). (a) True (b) False
38. 38.📏 How many watts (W) is 3 kW?
39. 39.📏 How many milliamperes (mA) is 0.91 A?
40. 40.📏 How many kilowatts (kW) is 3350 W? =

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