Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 903 · 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.True or false: the ammeter is joined across a part. (a) False (b) True
2. 2.📏 How many ohms (Ω) is 8.5 kΩ?
3. 3.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
4. 4.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
5. 5.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) current (c) the flow of charge (d) the push of a cell
6. 6.📏 How many milliamperes (mA) is 1.01 A?
7. 7.True or false: the push of a cell is measured in watts (W). (a) False (b) True
8. 8.True or false: the push of a cell is measured in volts (V). (a) False (b) True
9. 9.True or false: the voltmeter measures voltage. (a) False (b) True
10. 10.📏 How many ohms (Ω) is 5.3 kΩ?
11. 11.Which of these is measured in watts (W)? (a) resistance (b) current (c) voltage (d) power
12. 12.📏 Which unit measures the flow of charge? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
13. 13.📏 Which unit measures the push of a cell? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
14. 14.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
15. 15.📏 How many ohms (Ω) is 1.4 kΩ?
16. 16.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the pipe colour (c) a narrow pipe (d) the flow of water
17. 17.True or false: the voltmeter measures current. (a) True (b) False
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 2.61 A?
20. 20.📏 How many amperes (A) is 430 mA? =
21. 21.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) a narrow pipe (c) the water pressure (d) the flow of water
22. 22.📏 How many amperes (A) is 30 mA? =
23. 23.📏 How many watts (W) is 0.4 kW?
24. 24.True or false: the voltmeter is joined across a part. (a) False (b) True
25. 25.📏 How many milliamperes (mA) is 1.98 A?
26. 26.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
27. 27.📏 How many milliamperes (mA) is 1.61 A?
28. 28.Which of these is measured in amperes (A)? (a) resistance (b) how much a part resists (c) power (d) the flow of charge
29. 29.True or false: the voltmeter is joined in series. (a) True (b) False
30. 30.Which of these is measured in amperes (A)? (a) the push of a cell (b) current (c) voltage (d) resistance
31. 31.📏 How many ohms (Ω) is 6.3 kΩ?
32. 32.Which of these is measured in ohms (Ω)? (a) energy used each second (b) resistance (c) current (d) the push of a cell
33. 33.📏 How many kilowatts (kW) is 2250 W? =
34. 34.Which of these is measured in watts (W)? (a) the flow of charge (b) the push of a cell (c) energy used each second (d) voltage
35. 35.📏 Which unit measures how much a part resists? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
36. 36.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
37. 37.📏 How many ohms (Ω) is 1.1 kΩ?
38. 38.📏 How many ohms (Ω) is 5.8 kΩ?
39. 39.📏 How many ohms (Ω) is 8.4 kΩ?
40. 40.📏 How many kilo-ohms (kΩ) is 9100 Ω? =

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