Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 858 · 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 amperes (A) is 1300 mA? =
2. 2.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
3. 3.📏 How many watts (W) is 2 kW?
4. 4.📏 How many kilowatts (kW) is 3700 W? =
5. 5.Which of these is measured in volts (V)? (a) current (b) the push of a cell (c) the flow of charge (d) energy used each second
6. 6.True or false: energy used each second is measured in watts (W). (a) True (b) False
7. 7.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the tap handle (d) the water pressure
8. 8.True or false: the flow of charge is measured in watts (W). (a) True (b) False
9. 9.📏 Which unit measures voltage? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
10. 10.Which of these is measured in volts (V)? (a) resistance (b) how much a part resists (c) voltage (d) current
11. 11.📏 How many ohms (Ω) is 4.1 kΩ?
12. 12.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 1000 (c) 100 (d) 10
13. 13.📏 How many ohms (Ω) is 9.8 kΩ?
14. 14.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) power (d) current
15. 15.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 1000 (d) 100
16. 16.Which of these is measured in amperes (A)? (a) resistance (b) power (c) energy used each second (d) the flow of charge
17. 17.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
18. 18.Which of these is measured in amperes (A)? (a) voltage (b) resistance (c) the push of a cell (d) current
19. 19.📏 How many amperes (A) is 2640 mA? =
20. 20.📏 How many watts (W) is 2.5 kW?
21. 21.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
22. 22.Which of these is measured in watts (W)? (a) current (b) how much a part resists (c) energy used each second (d) the flow of charge
23. 23.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
24. 24.📏 How many milliamperes (mA) is 2.52 A?
25. 25.📏 How many watts (W) is 4.8 kW?
26. 26.True or false: the voltmeter is joined across a part. (a) False (b) True
27. 27.📏 How many ohms (Ω) is 9.7 kΩ?
28. 28.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
29. 29.True or false: the voltmeter measures current. (a) False (b) True
30. 30.📏 How many ohms (Ω) is 5 kΩ?
31. 31.True or false: the ammeter is joined in series. (a) False (b) True
32. 32.True or false: power is measured in watts (W). (a) True (b) False
33. 33.📏 How many milliamperes (mA) is 2.96 A?
34. 34.📏 How many amperes (A) is 1620 mA? =
35. 35.📏 How many watts (W) is 4 kW?
36. 36.📏 How many kilowatts (kW) is 3750 W? =
37. 37.True or false: resistance is measured in volts (V). (a) True (b) False
38. 38.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
39. 39.📏 How many amperes (A) is 2170 mA? =
40. 40.True or false: the voltmeter is joined in series. (a) False (b) True

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