Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 112 · 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.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
2. 2.📏 How many watts (W) is 0.5 kW?
3. 3.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
4. 4.Which of these is measured in watts (W)? (a) energy used each second (b) the push of a cell (c) resistance (d) voltage
5. 5.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
6. 6.📏 How many ohms (Ω) is 4.3 kΩ?
7. 7.📏 Which unit measures resistance? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
8. 8.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) energy used each second (c) how much a part resists (d) voltage
9. 9.📏 Which unit measures current? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
10. 10.📏 How many ohms (Ω) is 1.9 kΩ?
11. 11.True or false: resistance is measured in amperes (A). (a) False (b) True
12. 12.True or false: the push of a cell is measured in volts (V). (a) False (b) True
13. 13.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
14. 14.True or false: the voltmeter is joined across a part. (a) True (b) False
15. 15.📏 How many kilo-ohms (kΩ) is 5700 Ω? =
16. 16.📏 How many milliamperes (mA) is 1.7 A?
17. 17.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
18. 18.📏 How many milliamperes (mA) is 0.78 A?
19. 19.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water pressure (c) the pipe colour (d) the water tank lid
20. 20.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 60 (c) 100 (d) 1000
21. 21.True or false: the ammeter is joined in series. (a) True (b) False
22. 22.True or false: the ammeter measures voltage. (a) True (b) False
23. 23.📏 How many kilo-ohms (kΩ) is 5200 Ω? =
24. 24.True or false: current is measured in amperes (A). (a) False (b) True
25. 25.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
26. 26.📏 Which unit measures voltage? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
27. 27.📏 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
28. 28.📏 Which unit measures energy used each second? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
29. 29.Which of these is measured in amperes (A)? (a) power (b) how much a part resists (c) resistance (d) current
30. 30.📏 How many watts (W) is 1.2 kW?
31. 31.True or false: the voltmeter measures voltage. (a) True (b) False
32. 32.📏 How many kilowatts (kW) is 2450 W? =
33. 33.📏 How many kilowatts (kW) is 650 W? =
34. 34.📏 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
35. 35.📏 How many milliamperes (mA) is 1.45 A?
36. 36.True or false: the ammeter is joined across a part. (a) False (b) True
37. 37.📏 How many kilo-ohms (kΩ) is 2700 Ω? =
38. 38.Which of these is measured in ohms (Ω)? (a) resistance (b) voltage (c) the flow of charge (d) energy used each second
39. 39.📏 How many kilowatts (kW) is 3750 W? =
40. 40.📏 How many kilo-ohms (kΩ) is 8200 Ω? =

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