Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 706 · 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.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) how much a part resists (c) voltage (d) energy used each second
2. 2.True or false: the voltmeter is joined in series. (a) True (b) False
3. 3.📏 How many ohms (Ω) is 1.2 kΩ?
4. 4.📏 How many kilowatts (kW) is 4150 W? =
5. 5.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 1000 (d) 100
6. 6.📏 Which unit measures resistance? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
7. 7.📏 How many kilo-ohms (kΩ) is 3000 Ω? =
8. 8.📏 How many milliamperes (mA) is 2.33 A?
9. 9.True or false: voltage is measured in volts (V). (a) False (b) True
10. 10.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
11. 11.True or false: power is measured in ohms (Ω). (a) False (b) True
12. 12.Which of these is measured in volts (V)? (a) current (b) resistance (c) the flow of charge (d) the push of a cell
13. 13.📏 How many amperes (A) is 2210 mA? =
14. 14.True or false: the ammeter is joined across a part. (a) True (b) False
15. 15.📏 Which unit measures how much a part resists? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
16. 16.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) the water pressure (c) a bigger tank (d) a narrow pipe
17. 17.Which of these is measured in watts (W)? (a) how much a part resists (b) resistance (c) power (d) the flow of charge
18. 18.📏 How many amperes (A) is 190 mA? =
19. 19.📏 How many kilo-ohms (kΩ) is 3400 Ω? =
20. 20.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
21. 21.📏 How many milliamperes (mA) is 2.46 A?
22. 22.📏 How many kilowatts (kW) is 1700 W? =
23. 23.Which of these is measured in amperes (A)? (a) the push of a cell (b) current (c) power (d) resistance
24. 24.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
25. 25.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
26. 26.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
27. 27.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the water pressure (c) the flow of water (d) the pipe colour
28. 28.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
29. 29.True or false: the voltmeter measures current. (a) True (b) False
30. 30.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 100 (d) 1000
31. 31.📏 How many kilowatts (kW) is 3100 W? =
32. 32.📏 How many kilo-ohms (kΩ) is 1600 Ω? =
33. 33.True or false: resistance is measured in ohms (Ω). (a) True (b) False
34. 34.Which of these is measured in volts (V)? (a) the flow of charge (b) voltage (c) how much a part resists (d) resistance
35. 35.Which of these is measured in amperes (A)? (a) resistance (b) energy used each second (c) the flow of charge (d) the push of a cell
36. 36.📏 How many watts (W) is 0.6 kW?
37. 37.True or false: current is measured in amperes (A). (a) False (b) True
38. 38.True or false: resistance is measured in volts (V). (a) True (b) False
39. 39.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
40. 40.📏 How many kilo-ohms (kΩ) is 200 Ω? =

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