Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 754 · 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) True (b) False
2. 2.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 1000 (d) 100
3. 3.True or false: voltage is measured in volts (V). (a) False (b) True
4. 4.Which of these is measured in amperes (A)? (a) the push of a cell (b) resistance (c) power (d) the flow of charge
5. 5.📏 How many ohms (Ω) is 3.7 kΩ?
6. 6.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
7. 7.Which of these is measured in watts (W)? (a) resistance (b) how much a part resists (c) energy used each second (d) the flow of charge
8. 8.📏 How many kilowatts (kW) is 3950 W? =
9. 9.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
10. 10.Which of these is measured in volts (V)? (a) the push of a cell (b) the flow of charge (c) power (d) resistance
11. 11.📏 How many amperes (A) is 490 mA? =
12. 12.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
13. 13.True or false: the voltmeter is joined in series. (a) True (b) False
14. 14.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
15. 15.Which of these is measured in volts (V)? (a) resistance (b) current (c) voltage (d) energy used each second
16. 16.📏 How many amperes (A) is 2880 mA? =
17. 17.True or false: the ammeter is joined in series. (a) False (b) True
18. 18.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
19. 19.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 1000 (d) 60
20. 20.True or false: current is measured in ohms (Ω). (a) False (b) True
21. 21.📏 How many milliamperes (mA) is 1.45 A?
22. 22.📏 How many amperes (A) is 2910 mA? =
23. 23.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) the water pressure (c) a narrow pipe (d) a bigger tank
24. 24.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the water pressure (d) the pipe colour
25. 25.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
26. 26.📏 How many milliamperes (mA) is 1.08 A?
27. 27.📏 Which unit measures energy used each second? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
28. 28.Which of these is measured in amperes (A)? (a) energy used each second (b) how much a part resists (c) current (d) the push of a cell
29. 29.True or false: voltage is measured in watts (W). (a) True (b) False
30. 30.📏 How many milliamperes (mA) is 2.72 A?
31. 31.📏 How many amperes (A) is 1340 mA? =
32. 32.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
33. 33.📏 How many milliamperes (mA) is 2.83 A?
34. 34.📏 Which unit measures resistance? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
35. 35.True or false: voltage is measured in amperes (A). (a) False (b) True
36. 36.📏 How many amperes (A) is 1170 mA? =
37. 37.📏 How many ohms (Ω) is 9.3 kΩ?
38. 38.📏 How many amperes (A) is 1290 mA? =
39. 39.📏 How many amperes (A) is 440 mA? =
40. 40.True or false: energy used each second is measured in watts (W). (a) False (b) True

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