Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 158 · 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 watts (W) is 0.7 kW?
2. 2.Which of these is measured in amperes (A)? (a) energy used each second (b) current (c) the push of a cell (d) how much a part resists
3. 3.True or false: power is measured in volts (V). (a) False (b) True
4. 4.📏 How many milliamperes (mA) is 0.91 A?
5. 5.True or false: the push of a cell is measured in volts (V). (a) True (b) False
6. 6.📏 How many watts (W) is 3.6 kW?
7. 7.True or false: the push of a cell is measured in watts (W). (a) False (b) True
8. 8.True or false: the ammeter is joined across a part. (a) True (b) False
9. 9.True or false: the voltmeter measures voltage. (a) True (b) False
10. 10.True or false: voltage is measured in ohms (Ω). (a) False (b) True
11. 11.📏 How many milliamperes (mA) is 1.95 A?
12. 12.Which of these is measured in amperes (A)? (a) how much a part resists (b) voltage (c) the flow of charge (d) energy used each second
13. 13.True or false: current is measured in watts (W). (a) False (b) True
14. 14.Which of these is measured in watts (W)? (a) resistance (b) the flow of charge (c) energy used each second (d) current
15. 15.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
16. 16.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
17. 17.True or false: power is measured in watts (W). (a) False (b) True
18. 18.📏 How many amperes (A) is 900 mA? =
19. 19.True or false: the ammeter measures current. (a) True (b) False
20. 20.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
21. 21.📏 How many milliamperes (mA) is 1.6 A?
22. 22.True or false: the voltmeter is joined across a part. (a) True (b) False
23. 23.📏 How many watts (W) is 0.5 kW?
24. 24.Which of these is measured in volts (V)? (a) voltage (b) resistance (c) energy used each second (d) how much a part resists
25. 25.📏 How many kilo-ohms (kΩ) is 8400 Ω? =
26. 26.📏 How many milliamperes (mA) is 0.3 A?
27. 27.True or false: resistance is measured in ohms (Ω). (a) False (b) True
28. 28.📏 How many amperes (A) is 720 mA? =
29. 29.True or false: the voltmeter measures current. (a) False (b) True
30. 30.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
31. 31.True or false: the ammeter measures voltage. (a) False (b) True
32. 32.True or false: current is measured in amperes (A). (a) False (b) True
33. 33.True or false: the ammeter is joined in series. (a) True (b) False
34. 34.True or false: how much a part resists is measured in volts (V). (a) True (b) False
35. 35.📏 How many kilo-ohms (kΩ) is 1700 Ω? =
36. 36.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the water pressure (d) the tap handle
37. 37.📏 How many kilowatts (kW) is 850 W? =
38. 38.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
39. 39.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
40. 40.📏 How many ohms (Ω) is 8 kΩ?

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