Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 106 · 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 kilo-ohms (kΩ) is 5400 Ω? =
3. 3.Which of these is measured in volts (V)? (a) power (b) the push of a cell (c) resistance (d) how much a part resists
4. 4.True or false: energy used each second is measured in watts (W). (a) False (b) True
5. 5.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
6. 6.📏 How many milliamperes (mA) is 0.47 A?
7. 7.📏 How many kilowatts (kW) is 4150 W? =
8. 8.True or false: the ammeter measures current. (a) False (b) True
9. 9.📏 How many kilo-ohms (kΩ) is 7400 Ω? =
10. 10.📏 How many watts (W) is 0.7 kW?
11. 11.📏 How many milliamperes (mA) is 0.66 A?
12. 12.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
13. 13.Which of these is measured in watts (W)? (a) how much a part resists (b) energy used each second (c) the push of a cell (d) voltage
14. 14.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a bigger tank (c) the flow of water (d) a narrow pipe
15. 15.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
16. 16.True or false: the flow of charge is measured in volts (V). (a) False (b) True
17. 17.True or false: the voltmeter measures current. (a) True (b) False
18. 18.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 1024 (d) 100
19. 19.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
20. 20.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
21. 21.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
22. 22.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
23. 23.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
24. 24.Which of these is measured in ohms (Ω)? (a) resistance (b) voltage (c) the flow of charge (d) power
25. 25.True or false: the push of a cell is measured in volts (V). (a) True (b) False
26. 26.📏 Which unit measures power? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
27. 27.Which of these is measured in watts (W)? (a) voltage (b) how much a part resists (c) current (d) power
28. 28.📏 How many milliamperes (mA) is 0.08 A?
29. 29.📏 How many kilowatts (kW) is 1800 W? =
30. 30.📏 Which unit measures current? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
31. 31.📏 How many amperes (A) is 770 mA? =
32. 32.True or false: the ammeter is joined in series. (a) False (b) True
33. 33.📏 How many watts (W) is 5 kW?
34. 34.True or false: energy used each second is measured in amperes (A). (a) True (b) False
35. 35.Which of these is measured in amperes (A)? (a) power (b) the push of a cell (c) the flow of charge (d) voltage
36. 36.📏 How many ohms (Ω) is 9.1 kΩ?
37. 37.True or false: the ammeter measures voltage. (a) True (b) False
38. 38.📏 How many milliamperes (mA) is 1.89 A?
39. 39.📏 How many milliamperes (mA) is 2.72 A?
40. 40.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False

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