Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 352 · 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.Which of these is measured in amperes (A)? (a) resistance (b) how much a part resists (c) the flow of charge (d) the push of a cell
2. 2.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
3. 3.📏 How many milliamperes (mA) is 0.32 A?
4. 4.📏 How many amperes (A) is 2650 mA? =
5. 5.📏 How many amperes (A) is 3000 mA? =
6. 6.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
7. 7.📏 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
8. 8.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the tap handle (d) the pipe colour
9. 9.Which of these is measured in watts (W)? (a) the push of a cell (b) energy used each second (c) the flow of charge (d) resistance
10. 10.True or false: voltage is measured in volts (V). (a) False (b) True
11. 11.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
12. 12.True or false: the voltmeter is joined across a part. (a) True (b) False
13. 13.📏 How many kilowatts (kW) is 1400 W? =
14. 14.📏 How many kilo-ohms (kΩ) is 4400 Ω? =
15. 15.📏 How many milliamperes (mA) is 1.66 A?
16. 16.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
17. 17.Which of these is measured in volts (V)? (a) voltage (b) how much a part resists (c) power (d) current
18. 18.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
19. 19.📏 How many amperes (A) is 740 mA? =
20. 20.📏 How many milliamperes (mA) is 0.57 A?
21. 21.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
22. 22.📏 How many kilowatts (kW) is 250 W? =
23. 23.📏 How many watts (W) is 1.5 kW?
24. 24.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 1000 (d) 100
25. 25.True or false: the flow of charge is measured in amperes (A). (a) True (b) False
26. 26.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 100 (c) 10 (d) 60
27. 27.📏 How many watts (W) is 4.6 kW?
28. 28.True or false: the voltmeter measures voltage. (a) False (b) True
29. 29.📏 How many milliamperes (mA) is 2.86 A?
30. 30.True or false: resistance is measured in watts (W). (a) False (b) True
31. 31.True or false: energy used each second is measured in watts (W). (a) False (b) True
32. 32.📏 How many kilo-ohms (kΩ) is 4700 Ω? =
33. 33.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
34. 34.Which of these is measured in amperes (A)? (a) the push of a cell (b) energy used each second (c) current (d) voltage
35. 35.Which of these is measured in ohms (Ω)? (a) resistance (b) voltage (c) power (d) the push of a cell
36. 36.📏 How many milliamperes (mA) is 1.52 A?
37. 37.📏 How many amperes (A) is 1530 mA? =
38. 38.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
39. 39.📏 How many watts (W) is 0.7 kW?
40. 40.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter

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