Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 441 · 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 is joined across a part? (a) ammeter (b) voltmeter
2. 2.Which of these is measured in volts (V)? (a) resistance (b) power (c) voltage (d) the flow of charge
3. 3.📏 Which unit measures voltage? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
4. 4.True or false: how much a part resists is measured in volts (V). (a) False (b) True
5. 5.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
6. 6.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
7. 7.📏 How many amperes (A) is 420 mA? =
8. 8.True or false: the ammeter measures current. (a) False (b) True
9. 9.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
10. 10.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
11. 11.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the water pressure (c) the pipe colour (d) the flow of water
12. 12.Which of these is measured in amperes (A)? (a) how much a part resists (b) the push of a cell (c) resistance (d) current
13. 13.Which of these is measured in amperes (A)? (a) the push of a cell (b) resistance (c) the flow of charge (d) how much a part resists
14. 14.True or false: energy used each second is measured in volts (V). (a) True (b) False
15. 15.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 100 (c) 1000 (d) 1024
16. 16.True or false: the push of a cell is measured in volts (V). (a) False (b) True
17. 17.True or false: resistance is measured in watts (W). (a) False (b) True
18. 18.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
19. 19.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
20. 20.Which of these is measured in ohms (Ω)? (a) voltage (b) power (c) resistance (d) energy used each second
21. 21.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 100 (d) 1000
22. 22.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
23. 23.📏 How many ohms (Ω) is 0.8 kΩ?
24. 24.📏 Which unit measures how much a part resists? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
25. 25.📏 How many milliamperes (mA) is 1.67 A?
26. 26.Which of these is measured in volts (V)? (a) power (b) resistance (c) current (d) the push of a cell
27. 27.📏 How many watts (W) is 3.7 kW?
28. 28.📏 How many milliamperes (mA) is 1.34 A?
29. 29.📏 How many amperes (A) is 2450 mA? =
30. 30.📏 How many milliamperes (mA) is 0.2 A?
31. 31.📏 How many ohms (Ω) is 7.2 kΩ?
32. 32.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water tank lid (d) the water pressure
33. 33.📏 How many ohms (Ω) is 9.9 kΩ?
34. 34.📏 How many kilowatts (kW) is 750 W? =
35. 35.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
36. 36.📏 How many amperes (A) is 1800 mA? =
37. 37.📏 Which unit measures energy used each second? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
38. 38.Which of these is measured in ohms (Ω)? (a) voltage (b) the flow of charge (c) power (d) how much a part resists
39. 39.📏 How many amperes (A) is 180 mA? =
40. 40.Which of these is measured in watts (W)? (a) resistance (b) energy used each second (c) voltage (d) current

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