Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 353 · 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, voltage is like … (a) the water tank lid (b) the water pressure (c) the tap handle (d) the pipe colour
2. 2.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) a narrow pipe (d) the flow of water
3. 3.📏 How many milliamperes (mA) is 0.27 A?
4. 4.Which of these is measured in amperes (A)? (a) the push of a cell (b) the flow of charge (c) voltage (d) how much a part resists
5. 5.📏 How many ohms (Ω) is 0.6 kΩ?
6. 6.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
7. 7.Which of these is measured in amperes (A)? (a) how much a part resists (b) power (c) current (d) the push of a cell
8. 8.📏 Which unit measures current? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
9. 9.True or false: the voltmeter measures current. (a) True (b) False
10. 10.📏 How many kilo-ohms (kΩ) is 3500 Ω? =
11. 11.📏 How many kilowatts (kW) is 4100 W? =
12. 12.📏 How many milliamperes (mA) is 0.84 A?
13. 13.Which of these is measured in ohms (Ω)? (a) current (b) the push of a cell (c) energy used each second (d) resistance
14. 14.📏 How many kilowatts (kW) is 3200 W? =
15. 15.📏 Which unit measures energy used each second? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
16. 16.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
17. 17.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) energy used each second (c) current (d) power
18. 18.True or false: resistance is measured in watts (W). (a) True (b) False
19. 19.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 100 (c) 10 (d) 1024
20. 20.True or false: the flow of charge is measured in watts (W). (a) True (b) False
21. 21.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
22. 22.📏 How many watts (W) is 4.7 kW?
23. 23.📏 How many kilowatts (kW) is 5000 W? =
24. 24.True or false: the voltmeter is joined across a part. (a) False (b) True
25. 25.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
26. 26.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
27. 27.True or false: the voltmeter is joined in series. (a) True (b) False
28. 28.📏 How many watts (W) is 4.3 kW?
29. 29.Which of these is measured in volts (V)? (a) power (b) voltage (c) the flow of charge (d) resistance
30. 30.True or false: the flow of charge is measured in volts (V). (a) False (b) True
31. 31.True or false: current is measured in amperes (A). (a) False (b) True
32. 32.📏 How many milliamperes (mA) is 0.86 A?
33. 33.True or false: energy used each second is measured in watts (W). (a) False (b) True
34. 34.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
35. 35.📏 How many kilowatts (kW) is 4550 W? =
36. 36.📏 How many amperes (A) is 2570 mA? =
37. 37.Which of these is measured in watts (W)? (a) power (b) resistance (c) voltage (d) the flow of charge
38. 38.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
39. 39.True or false: current is measured in watts (W). (a) True (b) False
40. 40.True or false: the flow of charge is measured in amperes (A). (a) True (b) False

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