Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 258 · 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: the ammeter is joined across a part. (a) True (b) False
2. 2.📏 How many kilo-ohms (kΩ) is 8200 Ω? =
3. 3.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) voltage (c) how much a part resists (d) power
4. 4.📏 How many amperes (A) is 1620 mA? =
5. 5.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
6. 6.True or false: the push of a cell is measured in volts (V). (a) False (b) True
7. 7.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the tap handle (d) the pipe colour
8. 8.True or false: the voltmeter measures voltage. (a) True (b) False
9. 9.📏 How many ohms (Ω) is 1.9 kΩ?
10. 10.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
11. 11.True or false: voltage is measured in amperes (A). (a) False (b) True
12. 12.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 100 (c) 60 (d) 1000
13. 13.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 1000 (c) 100 (d) 10
14. 14.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) the water pressure (c) the pipe colour (d) a narrow pipe
15. 15.True or false: current is measured in amperes (A). (a) False (b) True
16. 16.True or false: the voltmeter is joined across a part. (a) False (b) True
17. 17.True or false: the ammeter is joined in series. (a) False (b) True
18. 18.Which of these is measured in ohms (Ω)? (a) voltage (b) energy used each second (c) resistance (d) the push of a cell
19. 19.True or false: current is measured in volts (V). (a) False (b) True
20. 20.📏 How many amperes (A) is 2170 mA? =
21. 21.📏 How many amperes (A) is 300 mA? =
22. 22.📏 Which unit measures the push of a cell? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
23. 23.True or false: the ammeter measures voltage. (a) True (b) False
24. 24.True or false: the voltmeter is joined in series. (a) False (b) True
25. 25.📏 How many milliamperes (mA) is 1.39 A?
26. 26.📏 How many kilo-ohms (kΩ) is 6700 Ω? =
27. 27.Which of these is measured in amperes (A)? (a) resistance (b) voltage (c) energy used each second (d) the flow of charge
28. 28.Which of these is measured in watts (W)? (a) current (b) the push of a cell (c) the flow of charge (d) power
29. 29.📏 How many ohms (Ω) is 1.3 kΩ?
30. 30.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
31. 31.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
32. 32.📏 How many amperes (A) is 190 mA? =
33. 33.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
34. 34.True or false: the push of a cell is measured in watts (W). (a) True (b) False
35. 35.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
36. 36.📏 How many ohms (Ω) is 6.7 kΩ?
37. 37.Which of these is measured in volts (V)? (a) power (b) resistance (c) how much a part resists (d) voltage
38. 38.📏 How many amperes (A) is 1630 mA? =
39. 39.📏 How many kilo-ohms (kΩ) is 5500 Ω? =
40. 40.📏 How many kilowatts (kW) is 1900 W? =

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