Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 480 · 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, resistance is like … (a) the water pressure (b) the flow of water (c) a bigger tank (d) a narrow pipe
2. 2.True or false: current is measured in volts (V). (a) True (b) False
3. 3.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
4. 4.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 10 (d) 60
5. 5.Which of these is measured in volts (V)? (a) energy used each second (b) current (c) power (d) the push of a cell
6. 6.Which of these is measured in watts (W)? (a) how much a part resists (b) resistance (c) power (d) the push of a cell
7. 7.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
8. 8.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the flow of water (c) a narrow pipe (d) the water pressure
9. 9.📏 How many watts (W) is 4.7 kW?
10. 10.True or false: the push of a cell is measured in watts (W). (a) False (b) True
11. 11.True or false: the ammeter measures voltage. (a) True (b) False
12. 12.📏 How many kilo-ohms (kΩ) is 6800 Ω? =
13. 13.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
14. 14.📏 How many milliamperes (mA) is 2.95 A?
15. 15.📏 Which unit measures energy used each second? (a) ampere (A) (b) volt (V) (c) watt (W) (d) ohm (Ω)
16. 16.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the pipe colour (c) the water tank lid (d) the tap handle
17. 17.📏 How many milliamperes (mA) is 0.13 A?
18. 18.📏 How many milliamperes (mA) is 0.32 A?
19. 19.📏 How many kilowatts (kW) is 4750 W? =
20. 20.Which of these is measured in volts (V)? (a) energy used each second (b) power (c) resistance (d) voltage
21. 21.📏 Which unit measures resistance? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
22. 22.True or false: current is measured in watts (W). (a) True (b) False
23. 23.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 1000 (c) 10 (d) 100
24. 24.True or false: resistance is measured in watts (W). (a) True (b) False
25. 25.Which of these is measured in ohms (Ω)? (a) energy used each second (b) resistance (c) current (d) voltage
26. 26.Which of these is measured in amperes (A)? (a) the push of a cell (b) energy used each second (c) the flow of charge (d) power
27. 27.📏 Which unit measures how much a part resists? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
28. 28.Which of these is measured in watts (W)? (a) energy used each second (b) voltage (c) current (d) resistance
29. 29.True or false: resistance is measured in volts (V). (a) True (b) False
30. 30.📏 How many milliamperes (mA) is 2.3 A?
31. 31.True or false: the voltmeter measures voltage. (a) True (b) False
32. 32.📏 How many amperes (A) is 2340 mA? =
33. 33.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
34. 34.📏 How many kilowatts (kW) is 2050 W? =
35. 35.📏 How many ohms (Ω) is 6.9 kΩ?
36. 36.True or false: the push of a cell is measured in volts (V). (a) False (b) True
37. 37.📏 How many kilowatts (kW) is 3700 W? =
38. 38.📏 How many milliamperes (mA) is 0.17 A?
39. 39.📏 How many ohms (Ω) is 0.2 kΩ?
40. 40.📏 How many kilo-ohms (kΩ) is 1500 Ω? =

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