Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 992 · 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 kilo-ohms (kΩ) is 1900 Ω? =
2. 2.📏 How many milliamperes (mA) is 2.34 A?
3. 3.📏 How many kilo-ohms (kΩ) is 4100 Ω? =
4. 4.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
5. 5.Which of these is measured in volts (V)? (a) the flow of charge (b) current (c) voltage (d) how much a part resists
6. 6.True or false: the ammeter measures current. (a) False (b) True
7. 7.📏 How many ohms (Ω) is 2.6 kΩ?
8. 8.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
9. 9.True or false: energy used each second is measured in amperes (A). (a) False (b) True
10. 10.True or false: the ammeter is joined in series. (a) False (b) True
11. 11.📏 Which unit measures resistance? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
12. 12.True or false: the push of a cell is measured in volts (V). (a) True (b) False
13. 13.📏 How many kilo-ohms (kΩ) is 9500 Ω? =
14. 14.📏 How many milliamperes (mA) is 0.33 A?
15. 15.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
16. 16.📏 How many milliamperes (mA) is 0.74 A?
17. 17.📏 How many ohms (Ω) is 9.2 kΩ?
18. 18.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the pipe colour (c) the water pressure (d) the tap handle
19. 19.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) a bigger tank
20. 20.📏 How many kilo-ohms (kΩ) is 2800 Ω? =
21. 21.📏 How many kilowatts (kW) is 4250 W? =
22. 22.Which of these is measured in amperes (A)? (a) how much a part resists (b) the push of a cell (c) voltage (d) current
23. 23.📏 How many kilo-ohms (kΩ) is 6100 Ω? =
24. 24.Which of these is measured in watts (W)? (a) the flow of charge (b) the push of a cell (c) power (d) current
25. 25.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
26. 26.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
27. 27.📏 How many milliamperes (mA) is 0.31 A?
28. 28.Which of these is measured in volts (V)? (a) current (b) the push of a cell (c) power (d) how much a part resists
29. 29.📏 How many amperes (A) is 1780 mA? =
30. 30.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 60 (d) 1000
31. 31.📏 How many milliamperes (mA) is 1.25 A?
32. 32.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the pipe colour (c) a narrow pipe (d) the water pressure
33. 33.📏 How many amperes (A) is 1810 mA? =
34. 34.True or false: the voltmeter is joined across a part. (a) True (b) False
35. 35.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
36. 36.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
37. 37.📏 Which unit measures the flow of charge? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
38. 38.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
39. 39.True or false: power is measured in volts (V). (a) False (b) True
40. 40.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)

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