Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 597 · 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 is joined across a part? (a) ammeter (b) voltmeter
2. 2.True or false: the voltmeter measures current. (a) False (b) True
3. 3.📏 How many milliamperes (mA) is 0.2 A?
4. 4.Which of these is measured in watts (W)? (a) how much a part resists (b) power (c) the push of a cell (d) current
5. 5.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the tap handle (d) the water pressure
6. 6.True or false: the voltmeter is joined across a part. (a) True (b) False
7. 7.True or false: resistance is measured in ohms (Ω). (a) False (b) True
8. 8.Which of these is measured in volts (V)? (a) current (b) the push of a cell (c) the flow of charge (d) energy used each second
9. 9.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
10. 10.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
11. 11.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
12. 12.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 10 (c) 1024 (d) 100
13. 13.True or false: the voltmeter measures voltage. (a) False (b) True
14. 14.Which of these is measured in amperes (A)? (a) resistance (b) how much a part resists (c) the push of a cell (d) the flow of charge
15. 15.📏 How many kilowatts (kW) is 2650 W? =
16. 16.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
17. 17.True or false: energy used each second is measured in watts (W). (a) False (b) True
18. 18.📏 How many milliamperes (mA) is 2.1 A?
19. 19.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 100 (c) 60 (d) 10
20. 20.Which of these is measured in ohms (Ω)? (a) power (b) the push of a cell (c) the flow of charge (d) how much a part resists
21. 21.True or false: the flow of charge is measured in ohms (Ω). (a) True (b) False
22. 22.True or false: power is measured in ohms (Ω). (a) True (b) False
23. 23.📏 Which unit measures energy used each second? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
24. 24.True or false: voltage is measured in amperes (A). (a) True (b) False
25. 25.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the flow of water (d) the water pressure
26. 26.📏 How many kilowatts (kW) is 2400 W? =
27. 27.📏 How many kilo-ohms (kΩ) is 4400 Ω? =
28. 28.📏 How many amperes (A) is 1230 mA? =
29. 29.📏 Which unit measures voltage? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
30. 30.📏 How many milliamperes (mA) is 1.4 A?
31. 31.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
32. 32.📏 How many amperes (A) is 1860 mA? =
33. 33.Which of these is measured in ohms (Ω)? (a) resistance (b) current (c) the flow of charge (d) voltage
34. 34.📏 How many kilowatts (kW) is 4250 W? =
35. 35.📏 How many amperes (A) is 1060 mA? =
36. 36.📏 How many amperes (A) is 1330 mA? =
37. 37.True or false: how much a part resists is measured in watts (W). (a) False (b) True
38. 38.Which of these is measured in watts (W)? (a) energy used each second (b) voltage (c) resistance (d) how much a part resists
39. 39.True or false: the ammeter is joined across a part. (a) True (b) False
40. 40.📏 How many kilo-ohms (kΩ) is 5900 Ω? =

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