Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 21 · 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: power is measured in ohms (Ω). (a) False (b) True
2. 2.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 1000 (d) 60
3. 3.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
4. 4.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
5. 5.📏 How many kilowatts (kW) is 3550 W? =
6. 6.Which of these is measured in volts (V)? (a) voltage (b) power (c) energy used each second (d) how much a part resists
7. 7.True or false: the ammeter is joined in series. (a) True (b) False
8. 8.📏 How many kilo-ohms (kΩ) is 9100 Ω? =
9. 9.📏 How many kilowatts (kW) is 1250 W? =
10. 10.📏 How many kilowatts (kW) is 4050 W? =
11. 11.Which of these is measured in volts (V)? (a) resistance (b) how much a part resists (c) the push of a cell (d) current
12. 12.True or false: resistance is measured in watts (W). (a) True (b) False
13. 13.True or false: the voltmeter measures voltage. (a) True (b) False
14. 14.Which of these is measured in watts (W)? (a) the flow of charge (b) voltage (c) energy used each second (d) the push of a cell
15. 15.📏 How many kilowatts (kW) is 900 W? =
16. 16.📏 How many amperes (A) is 1260 mA? =
17. 17.True or false: the voltmeter measures current. (a) False (b) True
18. 18.📏 How many milliamperes (mA) is 1.56 A?
19. 19.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
20. 20.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
21. 21.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
22. 22.📏 How many kilowatts (kW) is 2650 W? =
23. 23.📏 How many amperes (A) is 1520 mA? =
24. 24.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
25. 25.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
26. 26.True or false: the push of a cell is measured in volts (V). (a) True (b) False
27. 27.True or false: resistance is measured in amperes (A). (a) False (b) True
28. 28.True or false: voltage is measured in amperes (A). (a) False (b) True
29. 29.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
30. 30.Which of these is measured in amperes (A)? (a) how much a part resists (b) the push of a cell (c) energy used each second (d) current
31. 31.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the pipe colour (c) the water pressure (d) the water tank lid
32. 32.📏 How many milliamperes (mA) is 0.2 A?
33. 33.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
34. 34.📏 How many kilo-ohms (kΩ) is 7500 Ω? =
35. 35.True or false: current is measured in ohms (Ω). (a) False (b) True
36. 36.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
37. 37.📏 How many kilowatts (kW) is 3600 W? =
38. 38.📏 How many kilo-ohms (kΩ) is 2500 Ω? =
39. 39.📏 Which unit measures current? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
40. 40.📏 How many milliamperes (mA) is 2.6 A?

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