Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 803 · 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 ohms (Ω) is 4.1 kΩ?
2. 2.Which of these is measured in volts (V)? (a) current (b) resistance (c) the push of a cell (d) the flow of charge
3. 3.📏 How many kilo-ohms (kΩ) is 6300 Ω? =
4. 4.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) a narrow pipe (c) the water pressure (d) the flow of water
5. 5.📏 Which unit measures how much a part resists? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
6. 6.📏 How many amperes (A) is 2080 mA? =
7. 7.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 100 (c) 1000 (d) 10
8. 8.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
9. 9.Which of these is measured in amperes (A)? (a) power (b) resistance (c) the flow of charge (d) voltage
10. 10.📏 How many watts (W) is 3.1 kW?
11. 11.True or false: resistance is measured in ohms (Ω). (a) False (b) True
12. 12.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the water pressure (c) a bigger tank (d) the flow of water
13. 13.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
14. 14.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
15. 15.True or false: the ammeter measures voltage. (a) True (b) False
16. 16.Which of these is measured in watts (W)? (a) energy used each second (b) voltage (c) how much a part resists (d) the push of a cell
17. 17.True or false: the voltmeter is joined in series. (a) False (b) True
18. 18.True or false: energy used each second is measured in ohms (Ω). (a) False (b) True
19. 19.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
20. 20.📏 How many ohms (Ω) is 8.9 kΩ?
21. 21.True or false: the ammeter is joined across a part. (a) False (b) True
22. 22.True or false: the push of a cell is measured in volts (V). (a) False (b) True
23. 23.Which of these is measured in watts (W)? (a) resistance (b) the flow of charge (c) power (d) the push of a cell
24. 24.Which of these is measured in ohms (Ω)? (a) voltage (b) resistance (c) power (d) the flow of charge
25. 25.True or false: voltage is measured in amperes (A). (a) True (b) False
26. 26.📏 How many milliamperes (mA) is 2.48 A?
27. 27.True or false: current is measured in volts (V). (a) True (b) False
28. 28.📏 How many milliamperes (mA) is 1.06 A?
29. 29.Which of these is measured in amperes (A)? (a) voltage (b) current (c) the push of a cell (d) resistance
30. 30.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
31. 31.📏 How many kilowatts (kW) is 3500 W? =
32. 32.📏 How many amperes (A) is 2670 mA? =
33. 33.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water tank lid (d) the water pressure
34. 34.📏 How many milliamperes (mA) is 0.27 A?
35. 35.True or false: power is measured in watts (W). (a) True (b) False
36. 36.📏 How many kilo-ohms (kΩ) is 2600 Ω? =
37. 37.True or false: the voltmeter is joined across a part. (a) False (b) True
38. 38.📏 How many ohms (Ω) is 8.6 kΩ?
39. 39.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
40. 40.📏 Which unit measures the flow of charge? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)

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