Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 135 · 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 0.3 kΩ?
2. 2.True or false: voltage is measured in volts (V). (a) False (b) True
3. 3.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the flow of water (d) the water pressure
4. 4.True or false: the voltmeter is joined across a part. (a) True (b) False
5. 5.📏 How many amperes (A) is 1560 mA? =
6. 6.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
7. 7.Which of these is measured in volts (V)? (a) the flow of charge (b) how much a part resists (c) power (d) the push of a cell
8. 8.📏 How many kilowatts (kW) is 3050 W? =
9. 9.📏 How many kilo-ohms (kΩ) is 6100 Ω? =
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
11. 11.📏 How many ohms (Ω) is 4.9 kΩ?
12. 12.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
13. 13.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
14. 14.📏 How many kilo-ohms (kΩ) is 4300 Ω? =
15. 15.Which of these is measured in volts (V)? (a) voltage (b) energy used each second (c) how much a part resists (d) resistance
16. 16.📏 How many milliamperes (mA) is 0.61 A?
17. 17.📏 How many amperes (A) is 2140 mA? =
18. 18.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
19. 19.📏 How many kilowatts (kW) is 2500 W? =
20. 20.📏 How many milliamperes (mA) is 2.84 A?
21. 21.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
22. 22.📏 How many kilo-ohms (kΩ) is 100 Ω? =
23. 23.Which of these is measured in watts (W)? (a) the flow of charge (b) how much a part resists (c) power (d) current
24. 24.📏 How many milliamperes (mA) is 2.73 A?
25. 25.True or false: the voltmeter measures current. (a) True (b) False
26. 26.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
27. 27.True or false: current is measured in ohms (Ω). (a) True (b) False
28. 28.Which of these is measured in amperes (A)? (a) voltage (b) the push of a cell (c) resistance (d) the flow of charge
29. 29.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 1000 (d) 100
30. 30.True or false: power is measured in ohms (Ω). (a) True (b) False
31. 31.Which of these is measured in amperes (A)? (a) the push of a cell (b) voltage (c) resistance (d) current
32. 32.True or false: the voltmeter measures voltage. (a) False (b) True
33. 33.📏 How many kilowatts (kW) is 1750 W? =
34. 34.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
35. 35.True or false: the ammeter measures current. (a) False (b) True
36. 36.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
37. 37.📏 How many milliamperes (mA) is 1.39 A?
38. 38.True or false: the ammeter is joined across a part. (a) False (b) True
39. 39.True or false: the ammeter is joined in series. (a) False (b) True
40. 40.📏 How many milliamperes (mA) is 0.27 A?

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