Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 910 · 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 volts (V)? (a) resistance (b) current (c) power (d) the push of a cell
2. 2.📏 How many kilowatts (kW) is 4750 W? =
3. 3.📏 How many amperes (A) is 1030 mA? =
4. 4.📏 How many amperes (A) is 2430 mA? =
5. 5.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
6. 6.Which of these is measured in watts (W)? (a) the push of a cell (b) power (c) voltage (d) resistance
7. 7.📏 How many watts (W) is 2.7 kW?
8. 8.Which of these is measured in amperes (A)? (a) voltage (b) power (c) how much a part resists (d) the flow of charge
9. 9.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
10. 10.📏 Which unit measures power? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
11. 11.Which of these is measured in amperes (A)? (a) power (b) current (c) energy used each second (d) voltage
12. 12.True or false: the ammeter is joined in series. (a) True (b) False
13. 13.True or false: the voltmeter is joined in series. (a) False (b) True
14. 14.True or false: resistance is measured in amperes (A). (a) False (b) True
15. 15.True or false: the ammeter measures current. (a) True (b) False
16. 16.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) a narrow pipe (c) the water pressure (d) the flow of water
17. 17.📏 How many watts (W) is 0.6 kW?
18. 18.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
19. 19.📏 How many milliamperes (mA) is 1.55 A?
20. 20.Which of these is measured in volts (V)? (a) voltage (b) energy used each second (c) resistance (d) current
21. 21.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
22. 22.📏 Which unit measures current? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
23. 23.📏 How many ohms (Ω) is 1.2 kΩ?
24. 24.True or false: the voltmeter is joined across a part. (a) False (b) True
25. 25.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 1000 (d) 100
26. 26.Which of these is measured in ohms (Ω)? (a) power (b) resistance (c) the push of a cell (d) the flow of charge
27. 27.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
28. 28.📏 How many kilo-ohms (kΩ) is 1100 Ω? =
29. 29.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
30. 30.True or false: the voltmeter measures voltage. (a) True (b) False
31. 31.📏 How many kilowatts (kW) is 1850 W? =
32. 32.True or false: the ammeter is joined across a part. (a) True (b) False
33. 33.📏 How many kilowatts (kW) is 3700 W? =
34. 34.📏 How many watts (W) is 3.3 kW?
35. 35.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
36. 36.📏 How many milliamperes (mA) is 1.65 A?
37. 37.True or false: voltage is measured in watts (W). (a) False (b) True
38. 38.📏 How many watts (W) is 4 kW?
39. 39.📏 How many milliamperes (mA) is 1.58 A?
40. 40.True or false: the flow of charge is measured in amperes (A). (a) True (b) False

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