Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 374 · 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.Which of these is measured in ohms (Ω)? (a) voltage (b) how much a part resists (c) power (d) the push of a cell
2. 2.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
3. 3.📏 How many watts (W) is 0.6 kW?
4. 4.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
5. 5.True or false: the voltmeter measures voltage. (a) True (b) False
6. 6.Which of these is measured in watts (W)? (a) current (b) voltage (c) power (d) the push of a cell
7. 7.📏 How many watts (W) is 2.8 kW?
8. 8.📏 How many kilowatts (kW) is 3950 W? =
9. 9.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
10. 10.📏 How many milliamperes (mA) is 2.03 A?
11. 11.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 100 (d) 1000
12. 12.📏 How many amperes (A) is 1000 mA? =
13. 13.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
14. 14.📏 How many ohms (Ω) is 7.6 kΩ?
15. 15.📏 How many milliamperes (mA) is 1.72 A?
16. 16.True or false: the ammeter measures voltage. (a) True (b) False
17. 17.📏 How many watts (W) is 1.4 kW?
18. 18.📏 Which unit measures power? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
19. 19.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
20. 20.Which of these is measured in volts (V)? (a) resistance (b) energy used each second (c) the flow of charge (d) the push of a cell
21. 21.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
22. 22.Which of these is measured in volts (V)? (a) voltage (b) the flow of charge (c) current (d) how much a part resists
23. 23.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the flow of water (c) the water pressure (d) a bigger tank
24. 24.📏 How many amperes (A) is 1210 mA? =
25. 25.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water pressure (d) the water tank lid
26. 26.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
27. 27.True or false: the ammeter is joined across a part. (a) True (b) False
28. 28.📏 How many watts (W) is 1.9 kW?
29. 29.True or false: the voltmeter is joined across a part. (a) False (b) True
30. 30.Which of these is measured in amperes (A)? (a) how much a part resists (b) voltage (c) energy used each second (d) current
31. 31.📏 How many milliamperes (mA) is 2.17 A?
32. 32.📏 How many kilo-ohms (kΩ) is 6000 Ω? =
33. 33.📏 How many amperes (A) is 580 mA? =
34. 34.📏 Which unit measures resistance? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
35. 35.True or false: the voltmeter is joined in series. (a) True (b) False
36. 36.📏 How many kilo-ohms (kΩ) is 800 Ω? =
37. 37.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the water pressure (d) the pipe colour
38. 38.📏 How many kilowatts (kW) is 4800 W? =
39. 39.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) power (c) voltage (d) resistance
40. 40.📏 Which unit measures current? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)

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