Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 539 · 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: current is measured in amperes (A). (a) False (b) True
2. 2.Which of these is measured in volts (V)? (a) current (b) resistance (c) power (d) voltage
3. 3.📏 How many ohms (Ω) is 4.1 kΩ?
4. 4.True or false: the ammeter measures current. (a) True (b) False
5. 5.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
6. 6.Which of these is measured in amperes (A)? (a) the flow of charge (b) power (c) the push of a cell (d) voltage
7. 7.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the water pressure (d) the pipe colour
8. 8.Which of these is measured in volts (V)? (a) power (b) current (c) the push of a cell (d) resistance
9. 9.📏 How many kilowatts (kW) is 3250 W? =
10. 10.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
11. 11.📏 How many ohms (Ω) is 6.8 kΩ?
12. 12.📏 How many amperes (A) is 2760 mA? =
13. 13.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
14. 14.📏 How many milliamperes (mA) is 0.55 A?
15. 15.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
16. 16.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
17. 17.📏 How many ohms (Ω) is 2.5 kΩ?
18. 18.📏 How many kilo-ohms (kΩ) is 2200 Ω? =
19. 19.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
20. 20.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 100 (c) 1000 (d) 10
21. 21.True or false: the voltmeter is joined across a part. (a) True (b) False
22. 22.📏 How many milliamperes (mA) is 2.44 A?
23. 23.📏 How many kilo-ohms (kΩ) is 5900 Ω? =
24. 24.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) a bigger tank (c) the water pressure (d) the flow of water
25. 25.📏 How many ohms (Ω) is 5.7 kΩ?
26. 26.📏 How many milliamperes (mA) is 1.15 A?
27. 27.📏 How many amperes (A) is 810 mA? =
28. 28.📏 Which unit measures the flow of charge? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
29. 29.Which of these is measured in watts (W)? (a) current (b) energy used each second (c) resistance (d) the flow of charge
30. 30.True or false: the ammeter measures voltage. (a) False (b) True
31. 31.True or false: the voltmeter measures voltage. (a) False (b) True
32. 32.True or false: energy used each second is measured in watts (W). (a) False (b) True
33. 33.True or false: voltage is measured in amperes (A). (a) False (b) True
34. 34.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 10 (c) 100 (d) 1000
35. 35.📏 How many amperes (A) is 1670 mA? =
36. 36.Which of these is measured in watts (W)? (a) how much a part resists (b) the push of a cell (c) current (d) power
37. 37.True or false: power is measured in volts (V). (a) False (b) True
38. 38.Which of these is measured in ohms (Ω)? (a) voltage (b) the flow of charge (c) how much a part resists (d) energy used each second
39. 39.True or false: energy used each second is measured in volts (V). (a) True (b) False
40. 40.📏 Which unit measures current? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)

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