Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 410 · 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.📏 How many kilo-ohms (kΩ) is 6900 Ω? =
2. 2.True or false: the ammeter measures voltage. (a) False (b) True
3. 3.📏 How many amperes (A) is 1890 mA? =
4. 4.📏 Which unit measures voltage? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
5. 5.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1024 (b) 1000 (c) 10 (d) 100
6. 6.📏 Which unit measures how much a part resists? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
7. 7.Which of these is measured in volts (V)? (a) current (b) energy used each second (c) voltage (d) the flow of charge
8. 8.📏 How many kilo-ohms (kΩ) is 3500 Ω? =
9. 9.📏 Which unit measures current? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
10. 10.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a bigger tank (c) a narrow pipe (d) the water pressure
11. 11.📏 Which unit measures power? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
12. 12.📏 How many milliamperes (mA) is 0.89 A?
13. 13.📏 How many kilowatts (kW) is 4850 W? =
14. 14.📏 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
15. 15.📏 How many watts (W) is 0.8 kW?
16. 16.True or false: the flow of charge is measured in volts (V). (a) True (b) False
17. 17.Which of these is measured in watts (W)? (a) current (b) energy used each second (c) the flow of charge (d) resistance
18. 18.📏 How many ohms (Ω) is 1 kΩ?
19. 19.Which of these is measured in amperes (A)? (a) current (b) voltage (c) power (d) the push of a cell
20. 20.📏 How many watts (W) is 4.2 kW?
21. 21.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the pipe colour (d) the water pressure
22. 22.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
23. 23.Which of these is measured in ohms (Ω)? (a) voltage (b) power (c) resistance (d) the push of a cell
24. 24.True or false: the push of a cell is measured in watts (W). (a) True (b) False
25. 25.📏 How many kilo-ohms (kΩ) is 1200 Ω? =
26. 26.📏 Which unit measures resistance? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
27. 27.True or false: the voltmeter is joined in series. (a) True (b) False
28. 28.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
29. 29.True or false: power is measured in watts (W). (a) True (b) False
30. 30.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
31. 31.📏 How many kilo-ohms (kΩ) is 400 Ω? =
32. 32.📏 How many milliamperes (mA) is 1.93 A?
33. 33.📏 Which unit measures the push of a cell? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
34. 34.📏 How many kilo-ohms (kΩ) is 7600 Ω? =
35. 35.True or false: current is measured in ohms (Ω). (a) False (b) True
36. 36.Which of these is measured in volts (V)? (a) how much a part resists (b) resistance (c) the push of a cell (d) energy used each second
37. 37.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
38. 38.True or false: energy used each second is measured in volts (V). (a) False (b) True
39. 39.Which of these is measured in amperes (A)? (a) the flow of charge (b) the push of a cell (c) voltage (d) how much a part resists
40. 40.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter

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