Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 369 · 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 of these is measured in watts (W)? (a) the push of a cell (b) power (c) how much a part resists (d) the flow of charge
2. 2.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
3. 3.📏 How many milliamperes (mA) is 2.98 A?
4. 4.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
5. 5.Which of these is measured in volts (V)? (a) power (b) the flow of charge (c) how much a part resists (d) voltage
6. 6.True or false: the voltmeter measures voltage. (a) False (b) True
7. 7.📏 How many amperes (A) is 1230 mA? =
8. 8.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water pressure (c) the tap handle (d) the water tank lid
9. 9.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
10. 10.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
11. 11.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
12. 12.Which of these is measured in volts (V)? (a) the push of a cell (b) resistance (c) current (d) power
13. 13.📏 How many ohms (Ω) is 4.9 kΩ?
14. 14.📏 How many amperes (A) is 420 mA? =
15. 15.True or false: voltage is measured in ohms (Ω). (a) True (b) False
16. 16.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
17. 17.True or false: the ammeter measures voltage. (a) True (b) False
18. 18.📏 How many kilo-ohms (kΩ) is 8100 Ω? =
19. 19.📏 How many kilowatts (kW) is 4150 W? =
20. 20.📏 How many kilo-ohms (kΩ) is 1700 Ω? =
21. 21.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
22. 22.📏 Which unit measures power? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
23. 23.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
24. 24.True or false: how much a part resists is measured in watts (W). (a) False (b) True
25. 25.📏 How many amperes (A) is 1630 mA? =
26. 26.📏 How many kilo-ohms (kΩ) is 5800 Ω? =
27. 27.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
28. 28.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the flow of charge (c) current (d) voltage
29. 29.True or false: energy used each second is measured in volts (V). (a) True (b) False
30. 30.True or false: the ammeter is joined across a part. (a) False (b) True
31. 31.True or false: the voltmeter is joined in series. (a) False (b) True
32. 32.📏 How many amperes (A) is 1430 mA? =
33. 33.📏 How many ohms (Ω) is 8.9 kΩ?
34. 34.True or false: voltage is measured in volts (V). (a) True (b) False
35. 35.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
36. 36.📏 How many watts (W) is 1.9 kW?
37. 37.True or false: the voltmeter is joined across a part. (a) True (b) False
38. 38.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
39. 39.📏 How many ohms (Ω) is 7.7 kΩ?
40. 40.📏 How many watts (W) is 2.6 kW?

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