Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 319 · 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.Which of these is measured in amperes (A)? (a) the push of a cell (b) current (c) resistance (d) voltage
2. 2.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 10 (c) 60 (d) 100
3. 3.📏 Which unit measures resistance? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
4. 4.Which of these is measured in ohms (Ω)? (a) current (b) the push of a cell (c) energy used each second (d) how much a part resists
5. 5.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the flow of water (c) the water pressure (d) a bigger tank
6. 6.📏 How many amperes (A) is 2070 mA? =
7. 7.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
8. 8.True or false: energy used each second is measured in volts (V). (a) False (b) True
9. 9.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the tap handle (c) the pipe colour (d) the water tank lid
10. 10.📏 How many kilowatts (kW) is 950 W? =
11. 11.Which of these is measured in volts (V)? (a) resistance (b) how much a part resists (c) energy used each second (d) the push of a cell
12. 12.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
13. 13.True or false: voltage is measured in amperes (A). (a) True (b) False
14. 14.Which of these is measured in volts (V)? (a) power (b) resistance (c) voltage (d) how much a part resists
15. 15.📏 How many amperes (A) is 680 mA? =
16. 16.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
17. 17.Which of these is measured in amperes (A)? (a) the push of a cell (b) how much a part resists (c) the flow of charge (d) energy used each second
18. 18.📏 Which unit measures how much a part resists? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
19. 19.📏 Which unit measures voltage? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
20. 20.True or false: the ammeter is joined in series. (a) True (b) False
21. 21.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
22. 22.📏 How many kilowatts (kW) is 2600 W? =
23. 23.📏 How many milliamperes (mA) is 2.91 A?
24. 24.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 100 (d) 1000
25. 25.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
26. 26.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
27. 27.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
28. 28.📏 How many ohms (Ω) is 0.4 kΩ?
29. 29.📏 How many milliamperes (mA) is 1.83 A?
30. 30.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
31. 31.📏 How many ohms (Ω) is 3.4 kΩ?
32. 32.📏 How many milliamperes (mA) is 1.01 A?
33. 33.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
34. 34.True or false: the voltmeter is joined across a part. (a) False (b) True
35. 35.📏 How many amperes (A) is 200 mA? =
36. 36.True or false: the voltmeter is joined in series. (a) False (b) True
37. 37.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
38. 38.Which of these is measured in watts (W)? (a) voltage (b) current (c) power (d) the flow of charge
39. 39.True or false: power is measured in ohms (Ω). (a) False (b) True
40. 40.📏 How many milliamperes (mA) is 0.83 A?

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