Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 587 · 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: energy used each second is measured in amperes (A). (a) False (b) True
2. 2.📏 How many kilo-ohms (kΩ) is 1500 Ω? =
3. 3.True or false: the ammeter measures current. (a) False (b) True
4. 4.True or false: the voltmeter is joined in series. (a) True (b) False
5. 5.True or false: the flow of charge is measured in volts (V). (a) False (b) True
6. 6.📏 How many watts (W) is 2.6 kW?
7. 7.True or false: energy used each second is measured in watts (W). (a) True (b) False
8. 8.True or false: current is measured in amperes (A). (a) True (b) False
9. 9.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
10. 10.📏 How many watts (W) is 0.6 kW?
11. 11.📏 How many ohms (Ω) is 0.5 kΩ?
12. 12.📏 How many ohms (Ω) is 3.6 kΩ?
13. 13.True or false: the ammeter measures voltage. (a) True (b) False
14. 14.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
15. 15.True or false: voltage is measured in ohms (Ω). (a) False (b) True
16. 16.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
17. 17.Which of these is measured in amperes (A)? (a) voltage (b) the flow of charge (c) energy used each second (d) power
18. 18.Which of these is measured in volts (V)? (a) how much a part resists (b) the push of a cell (c) the flow of charge (d) resistance
19. 19.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
20. 20.📏 How many watts (W) is 1 kW?
21. 21.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the water pressure (c) the flow of water (d) a bigger tank
22. 22.Which of these is measured in volts (V)? (a) resistance (b) power (c) current (d) voltage
23. 23.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
24. 24.📏 How many amperes (A) is 2890 mA? =
25. 25.📏 How many ohms (Ω) is 7.6 kΩ?
26. 26.True or false: the ammeter is joined in series. (a) True (b) False
27. 27.Which of these is measured in ohms (Ω)? (a) current (b) the flow of charge (c) voltage (d) how much a part resists
28. 28.📏 How many milliamperes (mA) is 2.26 A?
29. 29.True or false: the voltmeter is joined across a part. (a) False (b) True
30. 30.📏 How many ohms (Ω) is 0.9 kΩ?
31. 31.📏 How many watts (W) is 3.6 kW?
32. 32.📏 How many amperes (A) is 1520 mA? =
33. 33.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
34. 34.📏 How many milliamperes (mA) is 2.04 A?
35. 35.Which of these is measured in ohms (Ω)? (a) current (b) the push of a cell (c) voltage (d) resistance
36. 36.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
37. 37.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
38. 38.📏 How many kilowatts (kW) is 2150 W? =
39. 39.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
40. 40.📏 How many watts (W) is 3.1 kW?

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