Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 749 · 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.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) a narrow pipe (c) the pipe colour (d) the water pressure
3. 3.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
4. 4.📏 Which unit measures resistance? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
5. 5.📏 Which unit measures how much a part resists? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
6. 6.True or false: the voltmeter is joined across a part. (a) True (b) False
7. 7.Which of these is measured in watts (W)? (a) resistance (b) power (c) current (d) voltage
8. 8.Which of these is measured in volts (V)? (a) how much a part resists (b) power (c) voltage (d) the flow of charge
9. 9.Which of these is measured in volts (V)? (a) energy used each second (b) resistance (c) how much a part resists (d) the push of a cell
10. 10.True or false: the ammeter is joined across a part. (a) True (b) False
11. 11.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) power (c) energy used each second (d) the flow of charge
12. 12.True or false: the voltmeter measures current. (a) True (b) False
13. 13.📏 How many watts (W) is 1.2 kW?
14. 14.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the water pressure (d) the pipe colour
15. 15.True or false: the ammeter measures voltage. (a) True (b) False
16. 16.True or false: voltage is measured in volts (V). (a) False (b) True
17. 17.📏 How many kilo-ohms (kΩ) is 3700 Ω? =
18. 18.Which of these is measured in amperes (A)? (a) voltage (b) the flow of charge (c) resistance (d) energy used each second
19. 19.📏 How many ohms (Ω) is 0.8 kΩ?
20. 20.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 100 (c) 1000 (d) 10
21. 21.📏 Which unit measures power? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
22. 22.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
23. 23.📏 How many milliamperes (mA) is 0.16 A?
24. 24.📏 How many ohms (Ω) is 3 kΩ?
25. 25.📏 How many kilo-ohms (kΩ) is 9000 Ω? =
26. 26.True or false: current is measured in volts (V). (a) False (b) True
27. 27.Which of these is measured in watts (W)? (a) voltage (b) the flow of charge (c) the push of a cell (d) energy used each second
28. 28.📏 How many watts (W) is 4.1 kW?
29. 29.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 100 (c) 10 (d) 60
30. 30.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
31. 31.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
32. 32.Which of these is measured in ohms (Ω)? (a) voltage (b) resistance (c) energy used each second (d) current
33. 33.📏 How many amperes (A) is 2060 mA? =
34. 34.📏 How many watts (W) is 2.5 kW?
35. 35.📏 How many amperes (A) is 2910 mA? =
36. 36.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
37. 37.📏 How many kilo-ohms (kΩ) is 400 Ω? =
38. 38.📏 How many amperes (A) is 2570 mA? =
39. 39.📏 How many kilowatts (kW) is 5000 W? =
40. 40.📏 How many kilo-ohms (kΩ) is 4500 Ω? =

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