Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 698 · 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.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) the water pressure (c) a narrow pipe (d) a bigger tank
2. 2.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
3. 3.📏 How many amperes (A) is 660 mA? =
4. 4.True or false: power is measured in volts (V). (a) True (b) False
5. 5.📏 How many ohms (Ω) is 9.9 kΩ?
6. 6.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
7. 7.📏 How many amperes (A) is 1990 mA? =
8. 8.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) the push of a cell (c) energy used each second (d) current
9. 9.📏 How many milliamperes (mA) is 1.95 A?
10. 10.True or false: the voltmeter is joined in series. (a) True (b) False
11. 11.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
12. 12.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 1000 (d) 60
13. 13.📏 How many kilowatts (kW) is 750 W? =
14. 14.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
15. 15.📏 How many watts (W) is 3.2 kW?
16. 16.📏 How many ohms (Ω) is 5 kΩ?
17. 17.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
18. 18.📏 How many milliamperes (mA) is 2.6 A?
19. 19.📏 How many kilo-ohms (kΩ) is 1300 Ω? =
20. 20.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
21. 21.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
22. 22.📏 How many amperes (A) is 60 mA? =
23. 23.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
24. 24.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the pipe colour (c) the flow of water (d) a narrow pipe
25. 25.📏 How many ohms (Ω) is 1.8 kΩ?
26. 26.📏 How many watts (W) is 3.8 kW?
27. 27.Which of these is measured in amperes (A)? (a) resistance (b) how much a part resists (c) power (d) current
28. 28.📏 How many kilowatts (kW) is 3750 W? =
29. 29.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
30. 30.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the tap handle (c) the pipe colour (d) the water tank lid
31. 31.Which of these is measured in amperes (A)? (a) the push of a cell (b) the flow of charge (c) how much a part resists (d) energy used each second
32. 32.📏 How many amperes (A) is 770 mA? =
33. 33.📏 How many ohms (Ω) is 1.7 kΩ?
34. 34.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
35. 35.📏 How many milliamperes (mA) is 2.57 A?
36. 36.True or false: the voltmeter measures current. (a) False (b) True
37. 37.Which of these is measured in watts (W)? (a) power (b) how much a part resists (c) resistance (d) voltage
38. 38.Which of these is measured in volts (V)? (a) energy used each second (b) current (c) how much a part resists (d) the push of a cell
39. 39.True or false: the ammeter measures voltage. (a) True (b) False
40. 40.📏 How many kilowatts (kW) is 4400 W? =

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