Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 697 · 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 watts (W)? (a) the flow of charge (b) resistance (c) power (d) voltage
2. 2.📏 How many ohms (Ω) is 6.4 kΩ?
3. 3.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 100 (d) 1000
4. 4.📏 Which unit measures the push of a cell? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
5. 5.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
6. 6.True or false: current is measured in ohms (Ω). (a) False (b) True
7. 7.Which of these is measured in watts (W)? (a) current (b) voltage (c) energy used each second (d) the push of a cell
8. 8.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
9. 9.True or false: voltage is measured in volts (V). (a) False (b) True
10. 10.📏 How many amperes (A) is 550 mA? =
11. 11.📏 Which unit measures resistance? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
12. 12.📏 How many kilowatts (kW) is 1650 W? =
13. 13.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
14. 14.Which of these is measured in amperes (A)? (a) energy used each second (b) how much a part resists (c) resistance (d) current
15. 15.📏 How many ohms (Ω) is 2.3 kΩ?
16. 16.Which of these is measured in ohms (Ω)? (a) current (b) how much a part resists (c) voltage (d) the flow of charge
17. 17.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
18. 18.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
19. 19.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
20. 20.📏 How many kilo-ohms (kΩ) is 5500 Ω? =
21. 21.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a bigger tank (c) the water pressure (d) a narrow pipe
22. 22.True or false: the voltmeter is joined across a part. (a) True (b) False
23. 23.True or false: current is measured in watts (W). (a) False (b) True
24. 24.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
25. 25.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
26. 26.True or false: the voltmeter is joined in series. (a) False (b) True
27. 27.📏 How many amperes (A) is 10 mA? =
28. 28.📏 How many kilowatts (kW) is 4950 W? =
29. 29.True or false: energy used each second is measured in watts (W). (a) False (b) True
30. 30.📏 How many ohms (Ω) is 8.7 kΩ?
31. 31.Which of these is measured in volts (V)? (a) resistance (b) how much a part resists (c) voltage (d) current
32. 32.📏 How many watts (W) is 0.7 kW?
33. 33.📏 How many ohms (Ω) is 2 kΩ?
34. 34.📏 How many amperes (A) is 2410 mA? =
35. 35.📏 How many milliamperes (mA) is 0.77 A?
36. 36.📏 How many amperes (A) is 2090 mA? =
37. 37.Which of these is measured in volts (V)? (a) the push of a cell (b) energy used each second (c) how much a part resists (d) the flow of charge
38. 38.True or false: the voltmeter measures voltage. (a) False (b) True
39. 39.📏 How many kilowatts (kW) is 1150 W? =
40. 40.📏 How many milliamperes (mA) is 0.72 A?

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