Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 192 · 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 unit measures resistance? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
2. 2.True or false: the ammeter measures current. (a) True (b) False
3. 3.True or false: power is measured in amperes (A). (a) True (b) False
4. 4.True or false: the push of a cell is measured in volts (V). (a) False (b) True
5. 5.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
6. 6.True or false: the ammeter measures voltage. (a) True (b) False
7. 7.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
8. 8.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
9. 9.📏 How many kilo-ohms (kΩ) is 8000 Ω? =
10. 10.📏 How many kilowatts (kW) is 4350 W? =
11. 11.📏 How many amperes (A) is 150 mA? =
12. 12.📏 How many milliamperes (mA) is 2.77 A?
13. 13.True or false: the ammeter is joined in series. (a) False (b) True
14. 14.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
15. 15.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 1024 (d) 10
16. 16.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
17. 17.📏 How many amperes (A) is 2270 mA? =
18. 18.📏 How many milliamperes (mA) is 0.8 A?
19. 19.Which of these is measured in watts (W)? (a) energy used each second (b) the push of a cell (c) voltage (d) resistance
20. 20.📏 How many watts (W) is 4.8 kW?
21. 21.📏 How many amperes (A) is 820 mA? =
22. 22.True or false: resistance is measured in volts (V). (a) False (b) True
23. 23.True or false: the flow of charge is measured in watts (W). (a) False (b) True
24. 24.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the pipe colour (c) the water tank lid (d) the water pressure
25. 25.📏 How many kilo-ohms (kΩ) is 2400 Ω? =
26. 26.Which of these is measured in volts (V)? (a) current (b) resistance (c) how much a part resists (d) the push of a cell
27. 27.📏 Which unit measures energy used each second? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
28. 28.Which of these is measured in volts (V)? (a) voltage (b) how much a part resists (c) current (d) energy used each second
29. 29.Which of these is measured in ohms (Ω)? (a) resistance (b) the flow of charge (c) power (d) voltage
30. 30.True or false: the voltmeter measures voltage. (a) False (b) True
31. 31.True or false: the ammeter is joined across a part. (a) True (b) False
32. 32.📏 How many ohms (Ω) is 1.9 kΩ?
33. 33.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
34. 34.True or false: energy used each second is measured in volts (V). (a) True (b) False
35. 35.📏 How many kilowatts (kW) is 1050 W? =
36. 36.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) power (c) voltage (d) the push of a cell
37. 37.True or false: the voltmeter is joined in series. (a) True (b) False
38. 38.📏 How many kilowatts (kW) is 4200 W? =
39. 39.📏 How many kilo-ohms (kΩ) is 1700 Ω? =
40. 40.📏 How many milliamperes (mA) is 2.87 A?

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