Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 221 · 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.📏 How many watts (W) is 0.1 kW?
2. 2.Which of these is measured in amperes (A)? (a) how much a part resists (b) resistance (c) current (d) power
3. 3.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
4. 4.True or false: current is measured in watts (W). (a) False (b) True
5. 5.Which of these is measured in volts (V)? (a) the push of a cell (b) resistance (c) current (d) power
6. 6.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
7. 7.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) a narrow pipe (c) the flow of water (d) the water pressure
8. 8.True or false: voltage 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 ohms (Ω) is 9.8 kΩ?
11. 11.📏 Which unit measures how much a part resists? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
12. 12.Which of these is measured in watts (W)? (a) how much a part resists (b) resistance (c) the push of a cell (d) energy used each second
13. 13.📏 How many ohms (Ω) is 0.2 kΩ?
14. 14.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 1000 (c) 100 (d) 10
15. 15.📏 How many milliamperes (mA) is 2.11 A?
16. 16.True or false: the ammeter is joined across a part. (a) True (b) False
17. 17.True or false: the ammeter measures current. (a) False (b) True
18. 18.True or false: resistance is measured in ohms (Ω). (a) False (b) True
19. 19.📏 How many amperes (A) is 2450 mA? =
20. 20.📏 How many milliamperes (mA) is 2.29 A?
21. 21.📏 Which unit measures voltage? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
22. 22.True or false: the voltmeter is joined in series. (a) True (b) False
23. 23.📏 How many kilo-ohms (kΩ) is 7600 Ω? =
24. 24.Which of these is measured in ohms (Ω)? (a) current (b) the flow of charge (c) the push of a cell (d) how much a part resists
25. 25.📏 How many milliamperes (mA) is 0.33 A?
26. 26.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
27. 27.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) resistance (c) power (d) current
28. 28.📏 How many milliamperes (mA) is 0.78 A?
29. 29.True or false: the ammeter measures voltage. (a) True (b) False
30. 30.📏 How many kilowatts (kW) is 1300 W? =
31. 31.📏 How many amperes (A) is 20 mA? =
32. 32.📏 How many kilo-ohms (kΩ) is 800 Ω? =
33. 33.📏 How many kilowatts (kW) is 650 W? =
34. 34.Which of these is measured in amperes (A)? (a) the flow of charge (b) how much a part resists (c) voltage (d) power
35. 35.True or false: power is measured in watts (W). (a) False (b) True
36. 36.True or false: the voltmeter measures voltage. (a) True (b) False
37. 37.📏 How many milliamperes (mA) is 2.38 A?
38. 38.📏 How many amperes (A) is 2130 mA? =
39. 39.📏 Which unit measures energy used each second? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
40. 40.📏 How many ohms (Ω) is 2.2 kΩ?

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids