Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 859 · 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.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the water pressure (c) the pipe colour (d) the flow of water
2. 2.True or false: resistance is measured in ohms (Ω). (a) False (b) True
3. 3.📏 How many kilowatts (kW) is 1700 W? =
4. 4.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
5. 5.📏 How many milliamperes (mA) is 1.66 A?
6. 6.True or false: the ammeter measures current. (a) True (b) False
7. 7.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
8. 8.📏 How many kilowatts (kW) is 3000 W? =
9. 9.Which of these is measured in amperes (A)? (a) the push of a cell (b) energy used each second (c) current (d) voltage
10. 10.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) current
11. 11.📏 How many watts (W) is 2.6 kW?
12. 12.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
13. 13.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
14. 14.Which of these is measured in volts (V)? (a) power (b) voltage (c) current (d) resistance
15. 15.True or false: the ammeter is joined in series. (a) True (b) False
16. 16.True or false: the voltmeter is joined in series. (a) True (b) False
17. 17.📏 How many milliamperes (mA) is 1.5 A?
18. 18.📏 How many kilowatts (kW) is 2750 W? =
19. 19.📏 How many amperes (A) is 2770 mA? =
20. 20.📏 Which unit measures power? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
21. 21.True or false: the push of a cell is measured in volts (V). (a) False (b) True
22. 22.📏 How many watts (W) is 3.3 kW?
23. 23.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the pipe colour (c) the tap handle (d) the water tank lid
24. 24.Which of these is measured in amperes (A)? (a) resistance (b) how much a part resists (c) the push of a cell (d) the flow of charge
25. 25.📏 How many kilo-ohms (kΩ) is 7800 Ω? =
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.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
28. 28.Which of these is measured in watts (W)? (a) current (b) power (c) the flow of charge (d) the push of a cell
29. 29.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
30. 30.📏 How many amperes (A) is 1120 mA? =
31. 31.📏 How many watts (W) is 0.8 kW?
32. 32.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
33. 33.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
34. 34.📏 How many milliamperes (mA) is 2.53 A?
35. 35.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) the water pressure (c) a narrow pipe (d) a bigger tank
36. 36.📏 How many kilo-ohms (kΩ) is 1400 Ω? =
37. 37.📏 How many amperes (A) is 990 mA? =
38. 38.Which of these is measured in watts (W)? (a) the push of a cell (b) energy used each second (c) how much a part resists (d) voltage
39. 39.True or false: the ammeter is joined across a part. (a) False (b) True
40. 40.📏 How many milliamperes (mA) is 1.17 A?

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