Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 789 · 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.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
2. 2.📏 Which unit measures current? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
3. 3.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
4. 4.📏 How many amperes (A) is 580 mA? =
5. 5.📏 How many ohms (Ω) is 6 kΩ?
6. 6.Which of these is measured in watts (W)? (a) voltage (b) the flow of charge (c) resistance (d) power
7. 7.True or false: the voltmeter measures voltage. (a) False (b) True
8. 8.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 60 (d) 1000
9. 9.📏 How many milliamperes (mA) is 0.11 A?
10. 10.📏 How many milliamperes (mA) is 0.51 A?
11. 11.📏 Which unit measures voltage? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
12. 12.📏 How many amperes (A) is 1920 mA? =
13. 13.True or false: the voltmeter is joined in series. (a) True (b) False
14. 14.📏 How many watts (W) is 4.4 kW?
15. 15.📏 How many kilo-ohms (kΩ) is 1100 Ω? =
16. 16.True or false: current is measured in ohms (Ω). (a) False (b) True
17. 17.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the pipe colour (c) the flow of water (d) the water pressure
18. 18.📏 How many ohms (Ω) is 3.6 kΩ?
19. 19.📏 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
20. 20.📏 How many watts (W) is 4.6 kW?
21. 21.Which of these is measured in volts (V)? (a) the flow of charge (b) power (c) energy used each second (d) voltage
22. 22.True or false: how much a part resists is measured in volts (V). (a) False (b) True
23. 23.📏 How many milliamperes (mA) is 2.23 A?
24. 24.Which of these is measured in amperes (A)? (a) energy used each second (b) voltage (c) the flow of charge (d) resistance
25. 25.📏 How many kilo-ohms (kΩ) is 6400 Ω? =
26. 26.Which of these is measured in watts (W)? (a) voltage (b) current (c) energy used each second (d) the flow of charge
27. 27.📏 How many kilo-ohms (kΩ) is 100 Ω? =
28. 28.True or false: voltage is measured in volts (V). (a) True (b) False
29. 29.📏 How many watts (W) is 1.2 kW?
30. 30.True or false: the ammeter measures current. (a) False (b) True
31. 31.Which of these is measured in amperes (A)? (a) resistance (b) voltage (c) how much a part resists (d) current
32. 32.📏 How many ohms (Ω) is 1.9 kΩ?
33. 33.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
34. 34.📏 How many milliamperes (mA) is 2.3 A?
35. 35.True or false: resistance is measured in watts (W). (a) False (b) True
36. 36.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
37. 37.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
38. 38.📏 How many ohms (Ω) is 1.3 kΩ?
39. 39.📏 How many watts (W) is 0.5 kW?
40. 40.True or false: the push of a cell is measured in amperes (A). (a) True (b) False

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