Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 309 · 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.📏 Which unit measures current? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
3. 3.📏 How many milliamperes (mA) is 2.22 A?
4. 4.Which of these is measured in ohms (Ω)? (a) current (b) the push of a cell (c) the flow of charge (d) how much a part resists
5. 5.📏 How many kilo-ohms (kΩ) is 1100 Ω? =
6. 6.📏 How many kilo-ohms (kΩ) is 8100 Ω? =
7. 7.📏 Which unit measures the flow of charge? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
8. 8.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
9. 9.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
10. 10.📏 How many milliamperes (mA) is 0.61 A?
11. 11.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 10 (c) 100 (d) 1024
12. 12.True or false: the push of a cell is measured in volts (V). (a) False (b) True
13. 13.📏 How many kilowatts (kW) is 4050 W? =
14. 14.Which of these is measured in amperes (A)? (a) how much a part resists (b) power (c) current (d) resistance
15. 15.📏 Which unit measures resistance? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
16. 16.📏 How many ohms (Ω) is 8.1 kΩ?
17. 17.📏 How many kilo-ohms (kΩ) is 9700 Ω? =
18. 18.True or false: the voltmeter is joined across a part. (a) False (b) True
19. 19.📏 How many amperes (A) is 1900 mA? =
20. 20.Which of these is measured in amperes (A)? (a) power (b) the flow of charge (c) voltage (d) the push of a cell
21. 21.📏 How many ohms (Ω) is 6.2 kΩ?
22. 22.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
23. 23.📏 How many amperes (A) is 1390 mA? =
24. 24.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) a narrow pipe (c) the flow of water (d) the water pressure
25. 25.True or false: the voltmeter measures voltage. (a) False (b) True
26. 26.📏 How many amperes (A) is 850 mA? =
27. 27.📏 How many milliamperes (mA) is 2.57 A?
28. 28.📏 How many amperes (A) is 1790 mA? =
29. 29.True or false: the ammeter measures voltage. (a) True (b) False
30. 30.Which of these is measured in watts (W)? (a) how much a part resists (b) power (c) the flow of charge (d) resistance
31. 31.Which of these is measured in volts (V)? (a) the push of a cell (b) resistance (c) energy used each second (d) current
32. 32.📏 How many kilowatts (kW) is 4750 W? =
33. 33.📏 How many milliamperes (mA) is 1.32 A?
34. 34.📏 How many watts (W) is 0.5 kW?
35. 35.Which of these is measured in ohms (Ω)? (a) voltage (b) resistance (c) power (d) the push of a cell
36. 36.📏 How many milliamperes (mA) is 1.24 A?
37. 37.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water pressure (d) the water tank lid
38. 38.📏 How many kilowatts (kW) is 700 W? =
39. 39.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
40. 40.📏 Which unit measures energy used each second? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)

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