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Listening Quiz: Bảo Vệ Điện Từ cho Đo Lường Nhạy Cảm – Advanced Level
Th11 5, 2024
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Nhà vật lý học (English for Physicist)
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1.
What is the main topic of the conversation?
Repairing a broken electrical cable
Planning a software update for a device
Designing shielding for a sensitive sensor
Choosing the best food packaging for shipping
Explanation:
Sophia and Mark discuss how to shield a new sensor from electromagnetic interference, including materials, thickness, seams, and grounding.
2.
Why does Sophia say copper is better than aluminum for the shield?
It has higher electrical conductivity
It absorbs magnetic fields more effectively
It is easier to shape into thin layers
It is cheaper to buy in large sheets
Explanation:
Sophia explicitly says, “Copper is better because of its higher electrical conductivity.”
3.
What thickness does Sophia say the shield should have?
Thin enough to remain flexible
Only as thick as the sensor itself
Thick enough to reduce the field inside by 99%
Exactly one centimeter thick
Explanation:
Sophia says the shield should be “thick enough to reduce the field inside by 99%.”
4.
What can be inferred about the sensor from the conversation?
It can only work if the shield is made of plastic
It is unusually affected by external electromagnetic signals
It does not need grounding to function properly
It is likely used in an environment with little electromagnetic interference
Explanation:
Sophia says the sensor is “very sensitive to electromagnetic interference,” which implies external signals can easily affect it.
5.
Why does Mark say, “I will prepare a design with these points in mind”?
To ask Sophia to choose a different sensor
To suggest they abandon the shielding project
To show he understands and will include the discussed requirements
To end the conversation without agreeing
Explanation:
Mark’s comment indicates he is acknowledging the requirements they discussed and plans to design the shield accordingly.
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