Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 492 · 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.📏 Which unit measures energy used each second? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
2. 2.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
3. 3.📏 How many kilo-ohms (kΩ) is 1100 Ω? =
4. 4.📏 How many kilo-ohms (kΩ) is 6000 Ω? =
5. 5.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 100 (d) 1000
6. 6.📏 How many amperes (A) is 2890 mA? =
7. 7.True or false: how much a part resists is measured in volts (V). (a) True (b) False
8. 8.📏 How many amperes (A) is 1660 mA? =
9. 9.📏 How many ohms (Ω) is 3.5 kΩ?
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
11. 11.📏 How many ohms (Ω) is 9.3 kΩ?
12. 12.True or false: the voltmeter is joined in series. (a) True (b) False
13. 13.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 10 (d) 1000
14. 14.True or false: resistance is measured in ohms (Ω). (a) False (b) True
15. 15.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
16. 16.📏 Which unit measures resistance? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
17. 17.Which of these is measured in ohms (Ω)? (a) power (b) how much a part resists (c) voltage (d) the push of a cell
18. 18.Which of these is measured in watts (W)? (a) voltage (b) how much a part resists (c) energy used each second (d) the push of a cell
19. 19.📏 How many watts (W) is 1.1 kW?
20. 20.True or false: the voltmeter measures current. (a) True (b) False
21. 21.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
22. 22.📏 How many amperes (A) is 2300 mA? =
23. 23.True or false: the ammeter measures voltage. (a) True (b) False
24. 24.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
25. 25.True or false: voltage is measured in volts (V). (a) False (b) True
26. 26.Which of these is measured in amperes (A)? (a) voltage (b) the push of a cell (c) resistance (d) current
27. 27.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
28. 28.Which of these is measured in volts (V)? (a) current (b) power (c) resistance (d) voltage
29. 29.📏 How many kilowatts (kW) is 1500 W? =
30. 30.Which of these is measured in amperes (A)? (a) voltage (b) how much a part resists (c) power (d) the flow of charge
31. 31.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
32. 32.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
33. 33.True or false: current is measured in amperes (A). (a) True (b) False
34. 34.📏 How many watts (W) is 2.7 kW?
35. 35.📏 Which unit measures power? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
36. 36.📏 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
37. 37.True or false: current is measured in ohms (Ω). (a) False (b) True
38. 38.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
39. 39.True or false: the voltmeter is joined across a part. (a) True (b) False
40. 40.📏 How many kilowatts (kW) is 2100 W? =

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