Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 882 · 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 ohms (Ω) is 6.3 kΩ?
2. 2.True or false: the ammeter measures voltage. (a) False (b) True
3. 3.Which of these is measured in volts (V)? (a) current (b) the push of a cell (c) how much a part resists (d) energy used each second
4. 4.📏 Which unit measures energy used each second? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
5. 5.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
6. 6.True or false: the flow of charge is measured in volts (V). (a) False (b) True
7. 7.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) the pipe colour
8. 8.📏 How many ohms (Ω) is 3.7 kΩ?
9. 9.True or false: voltage is measured in volts (V). (a) True (b) False
10. 10.Which of these is measured in amperes (A)? (a) current (b) how much a part resists (c) voltage (d) resistance
11. 11.True or false: the push of a cell is measured in volts (V). (a) False (b) True
12. 12.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 100 (d) 1000
13. 13.📏 Which unit measures power? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
14. 14.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
15. 15.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 1024 (c) 1000 (d) 10
16. 16.📏 How many watts (W) is 3.7 kW?
17. 17.Which of these is measured in watts (W)? (a) resistance (b) energy used each second (c) voltage (d) the push of a cell
18. 18.True or false: how much a part resists is measured in volts (V). (a) False (b) True
19. 19.📏 How many amperes (A) is 1290 mA? =
20. 20.True or false: the voltmeter measures voltage. (a) True (b) False
21. 21.📏 How many milliamperes (mA) is 1.33 A?
22. 22.Which of these is measured in volts (V)? (a) current (b) voltage (c) energy used each second (d) the flow of charge
23. 23.True or false: power is measured in ohms (Ω). (a) False (b) True
24. 24.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
25. 25.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
26. 26.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
27. 27.📏 How many amperes (A) is 1260 mA? =
28. 28.True or false: the voltmeter measures current. (a) True (b) False
29. 29.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
30. 30.True or false: the push of a cell is measured in watts (W). (a) False (b) True
31. 31.📏 Which unit measures resistance? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
32. 32.📏 How many amperes (A) is 2370 mA? =
33. 33.📏 How many ohms (Ω) is 9.9 kΩ?
34. 34.📏 How many kilowatts (kW) is 3550 W? =
35. 35.📏 How many milliamperes (mA) is 0.47 A?
36. 36.📏 How many amperes (A) is 80 mA? =
37. 37.📏 How many milliamperes (mA) is 0.4 A?
38. 38.Which of these is measured in ohms (Ω)? (a) voltage (b) the flow of charge (c) the push of a cell (d) resistance
39. 39.📏 How many ohms (Ω) is 3.2 kΩ?
40. 40.True or false: resistance is measured in ohms (Ω). (a) False (b) True

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