Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 773 · 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 measures voltage? (a) ammeter (b) voltmeter
2. 2.True or false: the ammeter is joined across a part. (a) True (b) False
3. 3.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
4. 4.True or false: the ammeter is joined in series. (a) False (b) True
5. 5.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) a bigger tank (c) the water pressure (d) the flow of water
6. 6.Which of these is measured in volts (V)? (a) how much a part resists (b) the push of a cell (c) current (d) power
7. 7.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
8. 8.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
9. 9.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
10. 10.📏 How many milliamperes (mA) is 2.68 A?
11. 11.📏 Which unit measures power? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
12. 12.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
13. 13.📏 Which unit measures energy used each second? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
14. 14.📏 How many amperes (A) is 1800 mA? =
15. 15.📏 Which unit measures voltage? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
16. 16.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
17. 17.True or false: the voltmeter is joined in series. (a) True (b) False
18. 18.📏 How many kilowatts (kW) is 1750 W? =
19. 19.📏 How many watts (W) is 1.7 kW?
20. 20.True or false: voltage is measured in ohms (Ω). (a) False (b) True
21. 21.Which of these is measured in amperes (A)? (a) the push of a cell (b) how much a part resists (c) resistance (d) current
22. 22.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 60 (d) 1000
23. 23.True or false: energy used each second is measured in volts (V). (a) True (b) False
24. 24.True or false: the voltmeter measures voltage. (a) False (b) True
25. 25.📏 Which unit measures resistance? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
26. 26.True or false: the ammeter measures current. (a) False (b) True
27. 27.📏 How many kilo-ohms (kΩ) is 2400 Ω? =
28. 28.📏 How many milliamperes (mA) is 2.69 A?
29. 29.📏 How many amperes (A) is 2570 mA? =
30. 30.True or false: the ammeter measures voltage. (a) True (b) False
31. 31.📏 How many milliamperes (mA) is 2.07 A?
32. 32.True or false: the flow of charge is measured in volts (V). (a) True (b) False
33. 33.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) voltage (c) current (d) how much a part resists
34. 34.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
35. 35.Which of these is measured in ohms (Ω)? (a) power (b) resistance (c) the push of a cell (d) the flow of charge
36. 36.📏 How many kilowatts (kW) is 2950 W? =
37. 37.True or false: the push of a cell is measured in volts (V). (a) False (b) True
38. 38.📏 How many ohms (Ω) is 2.3 kΩ?
39. 39.📏 How many milliamperes (mA) is 0.49 A?
40. 40.📏 How many kilo-ohms (kΩ) is 9600 Ω? =

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