Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 614 · 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 kilowatts (kW) is 4300 W? =
2. 2.Which of these is measured in ohms (Ω)? (a) current (b) resistance (c) energy used each second (d) the push of a cell
3. 3.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
4. 4.True or false: the push of a cell is measured in volts (V). (a) True (b) False
5. 5.Which of these is measured in ohms (Ω)? (a) power (b) how much a part resists (c) the push of a cell (d) voltage
6. 6.📏 How many ohms (Ω) is 2.5 kΩ?
7. 7.📏 Which unit measures voltage? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
8. 8.📏 How many milliamperes (mA) is 1.26 A?
9. 9.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 100 (d) 1000
10. 10.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
11. 11.True or false: the ammeter measures current. (a) False (b) True
12. 12.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the water pressure (d) the pipe colour
13. 13.📏 How many kilo-ohms (kΩ) is 5800 Ω? =
14. 14.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) the pipe colour
15. 15.True or false: the voltmeter measures current. (a) False (b) True
16. 16.True or false: the ammeter measures voltage. (a) False (b) True
17. 17.True or false: the ammeter is joined in series. (a) True (b) False
18. 18.📏 How many watts (W) is 0.9 kW?
19. 19.📏 Which unit measures the push of a cell? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
20. 20.📏 How many watts (W) is 5 kW?
21. 21.Which of these is measured in volts (V)? (a) the push of a cell (b) the flow of charge (c) power (d) resistance
22. 22.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
23. 23.📏 How many ohms (Ω) is 2.8 kΩ?
24. 24.📏 How many kilowatts (kW) is 3450 W? =
25. 25.Which of these is measured in volts (V)? (a) resistance (b) current (c) voltage (d) power
26. 26.True or false: the voltmeter is joined in series. (a) False (b) True
27. 27.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a bigger tank (c) a narrow pipe (d) the water pressure
28. 28.📏 How many watts (W) is 0.4 kW?
29. 29.📏 How many kilowatts (kW) is 450 W? =
30. 30.Which of these is measured in amperes (A)? (a) power (b) current (c) the push of a cell (d) voltage
31. 31.True or false: voltage is measured in volts (V). (a) False (b) True
32. 32.📏 How many ohms (Ω) is 0.3 kΩ?
33. 33.True or false: energy used each second is measured in volts (V). (a) True (b) False
34. 34.📏 How many amperes (A) is 530 mA? =
35. 35.True or false: power is measured in ohms (Ω). (a) True (b) False
36. 36.📏 How many kilowatts (kW) is 1750 W? =
37. 37.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
38. 38.📏 How many watts (W) is 4.2 kW?
39. 39.📏 Which unit measures resistance? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
40. 40.📏 How many amperes (A) is 2240 mA? =

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