Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 341 · 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.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the water pressure (c) the flow of water (d) a narrow pipe
2. 2.Which of these is measured in volts (V)? (a) the push of a cell (b) current (c) energy used each second (d) power
3. 3.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the flow of water (c) a narrow pipe (d) the water pressure
4. 4.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
5. 5.📏 How many amperes (A) is 380 mA? =
6. 6.True or false: the voltmeter measures voltage. (a) False (b) True
7. 7.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
8. 8.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the tap handle (d) the water pressure
9. 9.📏 How many kilowatts (kW) is 2350 W? =
10. 10.True or false: the ammeter is joined across a part. (a) False (b) True
11. 11.True or false: the ammeter measures current. (a) True (b) False
12. 12.True or false: the voltmeter measures current. (a) False (b) True
13. 13.True or false: the voltmeter is joined across a part. (a) False (b) True
14. 14.📏 How many amperes (A) is 1460 mA? =
15. 15.Which of these is measured in ohms (Ω)? (a) current (b) resistance (c) energy used each second (d) power
16. 16.Which of these is measured in amperes (A)? (a) how much a part resists (b) resistance (c) power (d) current
17. 17.📏 How many amperes (A) is 220 mA? =
18. 18.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
19. 19.True or false: the ammeter is joined in series. (a) True (b) False
20. 20.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
21. 21.📏 How many ohms (Ω) is 8.2 kΩ?
22. 22.Which of these is measured in amperes (A)? (a) the push of a cell (b) the flow of charge (c) voltage (d) resistance
23. 23.📏 How many milliamperes (mA) is 1.95 A?
24. 24.True or false: energy used each second is measured in amperes (A). (a) False (b) True
25. 25.True or false: energy used each second is measured in watts (W). (a) True (b) False
26. 26.📏 How many amperes (A) is 700 mA? =
27. 27.📏 How many kilowatts (kW) is 650 W? =
28. 28.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1024 (d) 1000
29. 29.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 60 (d) 1000
30. 30.📏 How many ohms (Ω) is 3.4 kΩ?
31. 31.True or false: resistance is measured in ohms (Ω). (a) True (b) False
32. 32.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
33. 33.📏 How many milliamperes (mA) is 2.38 A?
34. 34.True or false: the voltmeter is joined in series. (a) False (b) True
35. 35.Which of these is measured in volts (V)? (a) the flow of charge (b) voltage (c) power (d) energy used each second
36. 36.Which of these is measured in watts (W)? (a) resistance (b) current (c) energy used each second (d) how much a part resists
37. 37.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
38. 38.📏 How many milliamperes (mA) is 2.85 A?
39. 39.📏 Which unit measures the flow of charge? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
40. 40.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)

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