Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 201 · 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.Which of these is measured in volts (V)? (a) voltage (b) current (c) resistance (d) the flow of charge
2. 2.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
3. 3.📏 How many kilo-ohms (kΩ) is 3200 Ω? =
4. 4.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
5. 5.True or false: the voltmeter measures current. (a) False (b) True
6. 6.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the flow of water (c) a narrow pipe (d) the water pressure
7. 7.Which of these is measured in watts (W)? (a) how much a part resists (b) resistance (c) power (d) the flow of charge
8. 8.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
9. 9.Which of these is measured in amperes (A)? (a) power (b) the flow of charge (c) energy used each second (d) how much a part resists
10. 10.📏 How many kilowatts (kW) is 4050 W? =
11. 11.📏 How many kilo-ohms (kΩ) is 8300 Ω? =
12. 12.📏 Which unit measures the flow of charge? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
13. 13.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
14. 14.📏 How many kilowatts (kW) is 1050 W? =
15. 15.📏 How many watts (W) is 0.1 kW?
16. 16.True or false: resistance is measured in amperes (A). (a) True (b) False
17. 17.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 100 (d) 1000
18. 18.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
19. 19.📏 How many amperes (A) is 50 mA? =
20. 20.True or false: resistance is measured in ohms (Ω). (a) True (b) False
21. 21.True or false: current is measured in amperes (A). (a) True (b) False
22. 22.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
23. 23.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) power (c) resistance (d) current
24. 24.📏 How many ohms (Ω) is 9.6 kΩ?
25. 25.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
26. 26.📏 How many milliamperes (mA) is 1.51 A?
27. 27.True or false: power is measured in amperes (A). (a) False (b) True
28. 28.📏 How many kilowatts (kW) is 2600 W? =
29. 29.📏 How many watts (W) is 0.9 kW?
30. 30.True or false: the ammeter is joined across a part. (a) False (b) True
31. 31.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
32. 32.True or false: how much a part resists is measured in volts (V). (a) False (b) True
33. 33.📏 How many ohms (Ω) is 2.3 kΩ?
34. 34.📏 How many watts (W) is 3.9 kW?
35. 35.📏 How many amperes (A) is 2980 mA? =
36. 36.Which of these is measured in volts (V)? (a) power (b) the flow of charge (c) the push of a cell (d) current
37. 37.True or false: the ammeter measures current. (a) False (b) True
38. 38.📏 How many watts (W) is 1.1 kW?
39. 39.📏 How many milliamperes (mA) is 1.04 A?
40. 40.📏 How many ohms (Ω) is 4.7 kΩ?

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