Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 804 · 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 amperes (A) is 2590 mA? =
2. 2.True or false: resistance is measured in ohms (Ω). (a) False (b) True
3. 3.📏 How many kilo-ohms (kΩ) is 1900 Ω? =
4. 4.True or false: the voltmeter measures voltage. (a) False (b) True
5. 5.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) resistance (c) energy used each second (d) current
6. 6.True or false: the ammeter is joined across a part. (a) True (b) False
7. 7.📏 How many amperes (A) is 870 mA? =
8. 8.True or false: how much a part resists is measured in volts (V). (a) True (b) False
9. 9.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
10. 10.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
11. 11.True or false: power is measured in watts (W). (a) True (b) False
12. 12.True or false: the ammeter measures voltage. (a) False (b) True
13. 13.True or false: the ammeter measures current. (a) False (b) True
14. 14.True or false: the ammeter is joined in series. (a) True (b) False
15. 15.Which of these is measured in volts (V)? (a) power (b) energy used each second (c) the push of a cell (d) how much a part resists
16. 16.📏 How many milliamperes (mA) is 2.37 A?
17. 17.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
18. 18.True or false: the push of a cell is measured in volts (V). (a) False (b) True
19. 19.True or false: voltage is measured in volts (V). (a) False (b) True
20. 20.📏 Which unit measures energy used each second? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
21. 21.📏 How many milliamperes (mA) is 1.65 A?
22. 22.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
23. 23.📏 How many milliamperes (mA) is 2.98 A?
24. 24.📏 How many kilowatts (kW) is 4350 W? =
25. 25.📏 How many watts (W) is 0.5 kW?
26. 26.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the water pressure (c) the flow of water (d) the pipe colour
27. 27.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
28. 28.📏 How many kilowatts (kW) is 4850 W? =
29. 29.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
30. 30.📏 How many amperes (A) is 380 mA? =
31. 31.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
32. 32.True or false: the voltmeter measures current. (a) False (b) True
33. 33.📏 How many ohms (Ω) is 1.2 kΩ?
34. 34.Which of these is measured in ohms (Ω)? (a) voltage (b) power (c) the flow of charge (d) how much a part resists
35. 35.📏 How many kilo-ohms (kΩ) is 6500 Ω? =
36. 36.Which of these is measured in amperes (A)? (a) resistance (b) energy used each second (c) current (d) power
37. 37.Which of these is measured in watts (W)? (a) voltage (b) the flow of charge (c) resistance (d) energy used each second
38. 38.📏 How many watts (W) is 0.6 kW?
39. 39.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 60 (d) 1000
40. 40.📏 How many ohms (Ω) is 0.2 kΩ?

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