Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 387 · 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 milliamperes (mA) is 1.47 A?
2. 2.📏 How many kilo-ohms (kΩ) is 5900 Ω? =
3. 3.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
4. 4.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
5. 5.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
6. 6.📏 How many amperes (A) is 1630 mA? =
7. 7.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
8. 8.True or false: the push of a cell is measured in volts (V). (a) False (b) True
9. 9.True or false: the ammeter is joined in series. (a) False (b) True
10. 10.📏 How many watts (W) is 0.1 kW?
11. 11.True or false: how much a part resists is measured in volts (V). (a) False (b) True
12. 12.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
13. 13.📏 How many amperes (A) is 1640 mA? =
14. 14.📏 How many kilo-ohms (kΩ) is 9300 Ω? =
15. 15.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 60 (d) 10
16. 16.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) energy used each second (c) the flow of charge (d) power
17. 17.📏 Which unit measures current? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
18. 18.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
19. 19.True or false: the ammeter measures voltage. (a) False (b) True
20. 20.📏 How many amperes (A) is 1830 mA? =
21. 21.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
22. 22.True or false: the ammeter is joined across a part. (a) False (b) True
23. 23.True or false: the ammeter measures current. (a) True (b) False
24. 24.True or false: current is measured in amperes (A). (a) False (b) True
25. 25.📏 How many kilowatts (kW) is 4850 W? =
26. 26.📏 How many kilowatts (kW) is 4050 W? =
27. 27.📏 How many watts (W) is 4.6 kW?
28. 28.📏 How many watts (W) is 1 kW?
29. 29.True or false: the voltmeter measures voltage. (a) False (b) True
30. 30.True or false: the voltmeter measures current. (a) True (b) False
31. 31.True or false: voltage is measured in amperes (A). (a) False (b) True
32. 32.Which of these is measured in volts (V)? (a) resistance (b) energy used each second (c) the push of a cell (d) the flow of charge
33. 33.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
34. 34.Which of these is measured in ohms (Ω)? (a) voltage (b) resistance (c) power (d) the push of a cell
35. 35.📏 How many milliamperes (mA) is 2.25 A?
36. 36.Which of these is measured in volts (V)? (a) voltage (b) resistance (c) energy used each second (d) current
37. 37.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
38. 38.Which of these is measured in watts (W)? (a) the flow of charge (b) power (c) voltage (d) resistance
39. 39.Which of these is measured in amperes (A)? (a) the push of a cell (b) power (c) current (d) resistance
40. 40.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)

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