Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 293 · 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.True or false: the ammeter measures current. (a) False (b) True
2. 2.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
3. 3.📏 How many ohms (Ω) is 1.1 kΩ?
4. 4.📏 How many milliamperes (mA) is 2.48 A?
5. 5.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
6. 6.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 1000 (d) 100
7. 7.📏 How many kilowatts (kW) is 750 W? =
8. 8.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
9. 9.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
10. 10.True or false: energy used each second is measured in watts (W). (a) True (b) False
11. 11.Which of these is measured in volts (V)? (a) the flow of charge (b) power (c) voltage (d) energy used each second
12. 12.📏 How many amperes (A) is 2290 mA? =
13. 13.Which of these is measured in watts (W)? (a) current (b) the push of a cell (c) the flow of charge (d) power
14. 14.True or false: the push of a cell is measured in volts (V). (a) True (b) False
15. 15.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
16. 16.Which of these is measured in amperes (A)? (a) the flow of charge (b) energy used each second (c) power (d) the push of a cell
17. 17.📏 How many ohms (Ω) is 8.5 kΩ?
18. 18.📏 How many kilowatts (kW) is 2500 W? =
19. 19.📏 How many kilowatts (kW) is 4400 W? =
20. 20.True or false: voltage is measured in volts (V). (a) False (b) True
21. 21.Which of these is measured in watts (W)? (a) energy used each second (b) voltage (c) the push of a cell (d) the flow of charge
22. 22.Which of these is measured in ohms (Ω)? (a) resistance (b) voltage (c) power (d) the flow of charge
23. 23.📏 How many milliamperes (mA) is 0.92 A?
24. 24.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
25. 25.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
26. 26.Which of these is measured in ohms (Ω)? (a) voltage (b) how much a part resists (c) the push of a cell (d) energy used each second
27. 27.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
28. 28.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the pipe colour (d) the tap handle
29. 29.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
30. 30.True or false: the ammeter is joined across a part. (a) True (b) False
31. 31.True or false: the voltmeter measures voltage. (a) True (b) False
32. 32.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
33. 33.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
34. 34.True or false: energy used each second is measured in volts (V). (a) False (b) True
35. 35.True or false: the ammeter is joined in series. (a) True (b) False
36. 36.📏 How many watts (W) is 0.9 kW?
37. 37.True or false: the voltmeter measures current. (a) False (b) True
38. 38.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 100 (d) 1000
39. 39.📏 How many kilowatts (kW) is 3250 W? =
40. 40.Which of these is measured in amperes (A)? (a) voltage (b) the push of a cell (c) current (d) resistance

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