Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 116 · 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.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
2. 2.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
3. 3.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
4. 4.📏 How many watts (W) is 3.4 kW?
5. 5.📏 How many kilo-ohms (kΩ) is 2100 Ω? =
6. 6.Which of these is measured in amperes (A)? (a) voltage (b) resistance (c) how much a part resists (d) current
7. 7.Which of these is measured in watts (W)? (a) how much a part resists (b) power (c) resistance (d) current
8. 8.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
9. 9.📏 How many ohms (Ω) is 7.8 kΩ?
10. 10.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
11. 11.True or false: current is measured in amperes (A). (a) False (b) True
12. 12.📏 How many kilowatts (kW) is 400 W? =
13. 13.True or false: the ammeter measures voltage. (a) True (b) False
14. 14.📏 How many milliamperes (mA) is 0.56 A?
15. 15.Which of these is measured in volts (V)? (a) current (b) the push of a cell (c) the flow of charge (d) resistance
16. 16.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
17. 17.📏 How many watts (W) is 1 kW?
18. 18.True or false: the ammeter is joined across a part. (a) False (b) True
19. 19.True or false: the voltmeter is joined across a part. (a) False (b) True
20. 20.📏 How many milliamperes (mA) is 1.8 A?
21. 21.📏 How many milliamperes (mA) is 1.79 A?
22. 22.True or false: the voltmeter is joined in series. (a) True (b) False
23. 23.📏 How many kilowatts (kW) is 5000 W? =
24. 24.True or false: voltage is measured in volts (V). (a) False (b) True
25. 25.Which of these is measured in volts (V)? (a) power (b) resistance (c) voltage (d) the flow of charge
26. 26.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the pipe colour (c) the tap handle (d) the water tank lid
27. 27.📏 How many amperes (A) is 1310 mA? =
28. 28.True or false: the flow of charge is measured in watts (W). (a) True (b) False
29. 29.📏 How many milliamperes (mA) is 1.73 A?
30. 30.📏 How many watts (W) is 4.7 kW?
31. 31.Which of these is measured in ohms (Ω)? (a) current (b) resistance (c) the push of a cell (d) power
32. 32.True or false: the voltmeter measures current. (a) True (b) False
33. 33.True or false: power is measured in watts (W). (a) True (b) False
34. 34.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 100 (c) 1000 (d) 1024
35. 35.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 100 (d) 1000
36. 36.📏 How many amperes (A) is 2430 mA? =
37. 37.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
38. 38.📏 How many kilowatts (kW) is 750 W? =
39. 39.True or false: the ammeter is joined in series. (a) True (b) False
40. 40.True or false: how much a part resists is measured in volts (V). (a) False (b) True

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