Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 103 · 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 5500 Ω? =
2. 2.True or false: the ammeter measures voltage. (a) True (b) False
3. 3.Which of these is measured in amperes (A)? (a) power (b) voltage (c) resistance (d) the flow of charge
4. 4.📏 How many kilowatts (kW) is 1450 W? =
5. 5.📏 How many kilowatts (kW) is 4650 W? =
6. 6.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) the flow of water (d) a narrow pipe
7. 7.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
8. 8.Which of these is measured in volts (V)? (a) the flow of charge (b) power (c) how much a part resists (d) the push of a cell
9. 9.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a narrow pipe (c) the flow of water (d) a bigger tank
10. 10.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
11. 11.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 1000 (c) 100 (d) 10
12. 12.True or false: resistance is measured in ohms (Ω). (a) False (b) True
13. 13.True or false: the voltmeter measures current. (a) False (b) True
14. 14.📏 How many amperes (A) is 2460 mA? =
15. 15.📏 How many amperes (A) is 680 mA? =
16. 16.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
17. 17.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
18. 18.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
19. 19.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
20. 20.📏 How many kilo-ohms (kΩ) is 2500 Ω? =
21. 21.Which of these is measured in ohms (Ω)? (a) current (b) the push of a cell (c) voltage (d) how much a part resists
22. 22.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
23. 23.Which of these is measured in ohms (Ω)? (a) power (b) voltage (c) the push of a cell (d) resistance
24. 24.📏 How many kilowatts (kW) is 200 W? =
25. 25.📏 How many kilowatts (kW) is 4400 W? =
26. 26.📏 How many watts (W) is 3.8 kW?
27. 27.True or false: energy used each second is measured in watts (W). (a) True (b) False
28. 28.True or false: the voltmeter is joined across a part. (a) False (b) True
29. 29.📏 Which unit measures voltage? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
30. 30.Which of these is measured in amperes (A)? (a) current (b) power (c) the push of a cell (d) resistance
31. 31.📏 How many kilo-ohms (kΩ) is 4800 Ω? =
32. 32.📏 How many watts (W) is 4.7 kW?
33. 33.📏 How many ohms (Ω) is 4.3 kΩ?
34. 34.📏 How many ohms (Ω) is 1.3 kΩ?
35. 35.📏 How many milliamperes (mA) is 0.78 A?
36. 36.📏 How many kilo-ohms (kΩ) is 8000 Ω? =
37. 37.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
38. 38.True or false: the flow of charge is measured in volts (V). (a) True (b) False
39. 39.📏 How many ohms (Ω) is 1.1 kΩ?
40. 40.Which of these is measured in volts (V)? (a) power (b) energy used each second (c) current (d) voltage

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