Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 283 · 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 10 kΩ?
2. 2.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
3. 3.True or false: the voltmeter measures voltage. (a) True (b) False
4. 4.📏 Which unit measures voltage? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
5. 5.📏 How many amperes (A) is 620 mA? =
6. 6.Which of these is measured in amperes (A)? (a) how much a part resists (b) energy used each second (c) current (d) the push of a cell
7. 7.Which of these is measured in volts (V)? (a) current (b) power (c) how much a part resists (d) the push of a cell
8. 8.True or false: the ammeter is joined in series. (a) True (b) False
9. 9.📏 Which unit measures current? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
10. 10.📏 How many watts (W) is 3.5 kW?
11. 11.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
12. 12.True or false: the voltmeter is joined in series. (a) True (b) False
13. 13.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the pipe colour (c) the water tank lid (d) the water pressure
14. 14.Which of these is measured in ohms (Ω)? (a) current (b) resistance (c) voltage (d) the flow of charge
15. 15.📏 How many amperes (A) is 1270 mA? =
16. 16.True or false: resistance is measured in ohms (Ω). (a) True (b) False
17. 17.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
18. 18.True or false: the ammeter is joined across a part. (a) True (b) False
19. 19.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 1000 (c) 10 (d) 100
20. 20.📏 How many watts (W) is 2.7 kW?
21. 21.Which of these is measured in ohms (Ω)? (a) energy used each second (b) power (c) voltage (d) how much a part resists
22. 22.Which of these is measured in watts (W)? (a) energy used each second (b) the push of a cell (c) voltage (d) resistance
23. 23.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
24. 24.Which of these is measured in amperes (A)? (a) voltage (b) energy used each second (c) the flow of charge (d) how much a part resists
25. 25.📏 How many kilowatts (kW) is 2650 W? =
26. 26.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
27. 27.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
28. 28.True or false: the flow of charge is measured in watts (W). (a) False (b) True
29. 29.True or false: the voltmeter measures current. (a) False (b) True
30. 30.True or false: resistance is measured in watts (W). (a) True (b) False
31. 31.True or false: power is measured in ohms (Ω). (a) True (b) False
32. 32.True or false: voltage is measured in watts (W). (a) True (b) False
33. 33.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
34. 34.📏 How many amperes (A) is 2280 mA? =
35. 35.📏 How many amperes (A) is 2920 mA? =
36. 36.True or false: how much a part resists is measured in volts (V). (a) False (b) True
37. 37.📏 How many milliamperes (mA) is 0.46 A?
38. 38.True or false: the ammeter measures voltage. (a) False (b) True
39. 39.True or false: the push of a cell is measured in volts (V). (a) True (b) False
40. 40.True or false: the push of a cell is measured in amperes (A). (a) True (b) False

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