Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 583 · 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 kilowatts (kW) is 1350 W? =
2. 2.📏 How many kilowatts (kW) is 1150 W? =
3. 3.📏 How many kilowatts (kW) is 4300 W? =
4. 4.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
5. 5.Which of these is measured in amperes (A)? (a) current (b) the push of a cell (c) voltage (d) resistance
6. 6.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
7. 7.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the pipe colour (c) the water pressure (d) a narrow pipe
8. 8.📏 How many ohms (Ω) is 4.4 kΩ?
9. 9.True or false: current is measured in amperes (A). (a) True (b) False
10. 10.Which of these is measured in amperes (A)? (a) voltage (b) resistance (c) the flow of charge (d) how much a part resists
11. 11.📏 How many kilowatts (kW) is 3700 W? =
12. 12.📏 How many kilowatts (kW) is 3200 W? =
13. 13.📏 How many watts (W) is 0.3 kW?
14. 14.True or false: the ammeter is joined in series. (a) True (b) False
15. 15.True or false: the voltmeter is joined in series. (a) True (b) False
16. 16.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water pressure (c) the pipe colour (d) the water tank lid
17. 17.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
18. 18.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
19. 19.📏 Which unit measures the flow of charge? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
20. 20.📏 How many milliamperes (mA) is 0.22 A?
21. 21.📏 Which unit measures voltage? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
22. 22.📏 Which unit measures power? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
23. 23.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the push of a cell (c) energy used each second (d) power
24. 24.📏 How many ohms (Ω) is 0.4 kΩ?
25. 25.📏 How many watts (W) is 4.4 kW?
26. 26.Which of these is measured in watts (W)? (a) energy used each second (b) the flow of charge (c) resistance (d) voltage
27. 27.📏 How many ohms (Ω) is 7 kΩ?
28. 28.True or false: voltage is measured in volts (V). (a) True (b) False
29. 29.📏 How many milliamperes (mA) is 0.74 A?
30. 30.Which of these is measured in volts (V)? (a) how much a part resists (b) the push of a cell (c) current (d) energy used each second
31. 31.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a narrow pipe (c) the flow of water (d) a bigger tank
32. 32.📏 How many amperes (A) is 1540 mA? =
33. 33.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 1000 (c) 10 (d) 100
34. 34.📏 How many ohms (Ω) is 4.5 kΩ?
35. 35.📏 How many watts (W) is 0.6 kW?
36. 36.📏 How many watts (W) is 0.5 kW?
37. 37.True or false: current is measured in volts (V). (a) False (b) True
38. 38.📏 How many milliamperes (mA) is 2.86 A?
39. 39.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
40. 40.📏 How many amperes (A) is 2470 mA? =

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