Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 84 · 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 volts (V)? (a) how much a part resists (b) the flow of charge (c) energy used each second (d) the push of a cell
2. 2.True or false: the voltmeter measures current. (a) True (b) False
3. 3.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
4. 4.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
5. 5.True or false: the voltmeter is joined across a part. (a) False (b) True
6. 6.📏 How many ohms (Ω) is 0.3 kΩ?
7. 7.True or false: voltage is measured in watts (W). (a) True (b) False
8. 8.True or false: the ammeter is joined across a part. (a) True (b) False
9. 9.📏 How many milliamperes (mA) is 0.23 A?
10. 10.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
11. 11.📏 How many amperes (A) is 1860 mA? =
12. 12.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
13. 13.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
14. 14.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
15. 15.Which of these is measured in amperes (A)? (a) the push of a cell (b) voltage (c) current (d) power
16. 16.📏 How many milliamperes (mA) is 1.82 A?
17. 17.📏 How many kilowatts (kW) is 550 W? =
18. 18.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
19. 19.📏 Which unit measures current? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
20. 20.📏 How many milliamperes (mA) is 2.9 A?
21. 21.True or false: resistance is measured in ohms (Ω). (a) True (b) False
22. 22.True or false: the ammeter measures voltage. (a) True (b) False
23. 23.Which of these is measured in amperes (A)? (a) power (b) the push of a cell (c) the flow of charge (d) voltage
24. 24.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 60 (c) 1000 (d) 10
25. 25.Which of these is measured in ohms (Ω)? (a) power (b) energy used each second (c) the flow of charge (d) resistance
26. 26.📏 How many watts (W) is 0.2 kW?
27. 27.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) current (c) power (d) energy used each second
28. 28.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
29. 29.📏 How many kilowatts (kW) is 1950 W? =
30. 30.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the water pressure (c) a narrow pipe (d) the pipe colour
31. 31.Which of these is measured in volts (V)? (a) current (b) power (c) voltage (d) energy used each second
32. 32.True or false: the push of a cell is measured in watts (W). (a) False (b) True
33. 33.True or false: voltage is measured in ohms (Ω). (a) True (b) False
34. 34.📏 How many watts (W) is 1.2 kW?
35. 35.True or false: the ammeter measures current. (a) False (b) True
36. 36.True or false: how much a part resists is measured in volts (V). (a) False (b) True
37. 37.Which of these is measured in watts (W)? (a) energy used each second (b) the flow of charge (c) the push of a cell (d) resistance
38. 38.📏 How many kilo-ohms (kΩ) is 9800 Ω? =
39. 39.📏 How many ohms (Ω) is 2.2 kΩ?
40. 40.📏 How many kilowatts (kW) is 1200 W? =

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