Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 701 · 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 ohms (Ω) is 0.1 kΩ?
2. 2.True or false: the ammeter is joined across a part. (a) False (b) True
3. 3.📏 How many milliamperes (mA) is 2.13 A?
4. 4.📏 How many amperes (A) is 2790 mA? =
5. 5.📏 Which unit measures power? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
6. 6.📏 How many kilowatts (kW) is 1000 W? =
7. 7.Which of these is measured in watts (W)? (a) the push of a cell (b) current (c) power (d) the flow of charge
8. 8.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
9. 9.📏 How many kilowatts (kW) is 2300 W? =
10. 10.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the water pressure (d) the flow of water
11. 11.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
12. 12.📏 How many kilo-ohms (kΩ) is 8800 Ω? =
13. 13.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
14. 14.Which of these is measured in watts (W)? (a) voltage (b) the push of a cell (c) the flow of charge (d) energy used each second
15. 15.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
16. 16.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
17. 17.📏 How many watts (W) is 4.6 kW?
18. 18.📏 Which unit measures resistance? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
19. 19.📏 How many milliamperes (mA) is 1.09 A?
20. 20.📏 How many watts (W) is 0.2 kW?
21. 21.Which of these is measured in amperes (A)? (a) power (b) how much a part resists (c) voltage (d) current
22. 22.📏 How many ohms (Ω) is 4.6 kΩ?
23. 23.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 60 (d) 10
24. 24.True or false: power is measured in amperes (A). (a) False (b) True
25. 25.📏 How many ohms (Ω) is 5.6 kΩ?
26. 26.Which of these is measured in volts (V)? (a) energy used each second (b) power (c) how much a part resists (d) the push of a cell
27. 27.True or false: how much a part resists is measured in volts (V). (a) True (b) False
28. 28.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
29. 29.True or false: the push of a cell is measured in volts (V). (a) True (b) False
30. 30.True or false: the voltmeter is joined in series. (a) False (b) True
31. 31.📏 How many watts (W) is 4.5 kW?
32. 32.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
33. 33.True or false: power is measured in watts (W). (a) True (b) False
34. 34.True or false: the flow of charge is measured in watts (W). (a) True (b) False
35. 35.📏 How many ohms (Ω) is 6 kΩ?
36. 36.True or false: the ammeter measures voltage. (a) True (b) False
37. 37.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the push of a cell (c) voltage (d) power
38. 38.True or false: the ammeter measures current. (a) True (b) False
39. 39.True or false: the voltmeter measures current. (a) True (b) False
40. 40.Which of these is measured in volts (V)? (a) current (b) resistance (c) how much a part resists (d) voltage

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