Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 717 · 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.📏 How many milliamperes (mA) is 1.57 A?
2. 2.True or false: energy used each second is measured in amperes (A). (a) True (b) False
3. 3.📏 How many watts (W) is 3.4 kW?
4. 4.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
5. 5.Which of these is measured in watts (W)? (a) power (b) the flow of charge (c) voltage (d) current
6. 6.True or false: the voltmeter measures voltage. (a) False (b) True
7. 7.📏 How many amperes (A) is 2110 mA? =
8. 8.True or false: the voltmeter is joined across a part. (a) True (b) False
9. 9.Which of these is measured in amperes (A)? (a) the flow of charge (b) voltage (c) energy used each second (d) the push of a cell
10. 10.📏 How many kilo-ohms (kΩ) is 6700 Ω? =
11. 11.📏 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
12. 12.📏 How many milliamperes (mA) is 2.99 A?
13. 13.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
14. 14.Which of these is measured in amperes (A)? (a) resistance (b) power (c) current (d) energy used each second
15. 15.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) a bigger tank
16. 16.📏 Which unit measures the flow of charge? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
17. 17.📏 How many amperes (A) is 1800 mA? =
18. 18.📏 Which unit measures voltage? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
19. 19.📏 Which unit measures current? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
20. 20.📏 How many kilowatts (kW) is 4050 W? =
21. 21.True or false: resistance is measured in amperes (A). (a) False (b) True
22. 22.True or false: the ammeter measures current. (a) True (b) False
23. 23.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
24. 24.📏 How many kilo-ohms (kΩ) is 3800 Ω? =
25. 25.True or false: the voltmeter measures current. (a) True (b) False
26. 26.True or false: the ammeter measures voltage. (a) False (b) True
27. 27.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
28. 28.True or false: the ammeter is joined in series. (a) True (b) False
29. 29.📏 Which unit measures energy used each second? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
30. 30.📏 How many watts (W) is 1.6 kW?
31. 31.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
32. 32.True or false: the voltmeter is joined in series. (a) False (b) True
33. 33.📏 How many amperes (A) is 250 mA? =
34. 34.📏 How many milliamperes (mA) is 2.86 A?
35. 35.📏 How many watts (W) is 4.1 kW?
36. 36.True or false: voltage is measured in volts (V). (a) False (b) True
37. 37.📏 How many watts (W) is 2.5 kW?
38. 38.📏 How many milliamperes (mA) is 1.69 A?
39. 39.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
40. 40.Which of these is measured in volts (V)? (a) voltage (b) energy used each second (c) resistance (d) the flow of charge

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