Which of the substances listed can be used...

Question 1 / 270705eccefa3bacbc34ba4d47e88

Question 1 of 270705eccefa3bacbc34ba4d47e88

Which of the substances listed can be used to shield sensitive equipment from static magnetic fields?

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Question 1 of 27070

Q

Which of the substances listed can be used to shield sensitive equipment from static magnetic fields?

🔍 Key Concepts

• Static magnetic fields vs. electric fields – which materials affect magnetism rather than just insulate electricity? • Magnetic permeability – ability of a material to concentrate magnetic field lines. • Difference between magnetic materials (ferromagnetic) and good electrical insulators.

💭 Think About

• Ask yourself: which option is known to be attracted by a magnet or used in everyday magnets or transformers? • Which of these substances can ‘guide’ or ‘concentrate’ magnetic field lines rather than block electricity? • Which listed materials are primarily used as electrical insulators, and which one is commonly associated with magnetism?

✅ Before You Answer

• Identify which substance is ferromagnetic (strongly affected by magnetic fields). • Eliminate substances that are mainly electrical insulators with little or no magnetic effect (think plastics, glass, ceramics). • Recall that effective shielding from static magnetic fields usually uses materials with high magnetic permeability.

Question 1 of 27070

Q

Which of the substances listed can be used to shield sensitive equipment from static magnetic fields?

A

Bakelite

B

Glass

C

Mica

D

Iron

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Question 1 / 270705eccefa3bacbc34ba4d47e88

Question 1 of 270705eccefa3bacbc34ba4d47e88

Which of the substances listed can be used to shield sensitive equipment from static magnetic fields?

Back

Question 1 of 27070

Q

Which of the substances listed can be used to shield sensitive equipment from static magnetic fields?

🔍 Key Concepts

• Static magnetic fields vs. electric fields – which materials affect magnetism rather than just insulate electricity? • Magnetic permeability – ability of a material to concentrate magnetic field lines. • Difference between magnetic materials (ferromagnetic) and good electrical insulators.

💭 Think About

• Ask yourself: which option is known to be attracted by a magnet or used in everyday magnets or transformers? • Which of these substances can ‘guide’ or ‘concentrate’ magnetic field lines rather than block electricity? • Which listed materials are primarily used as electrical insulators, and which one is commonly associated with magnetism?

✅ Before You Answer

• Identify which substance is ferromagnetic (strongly affected by magnetic fields). • Eliminate substances that are mainly electrical insulators with little or no magnetic effect (think plastics, glass, ceramics). • Recall that effective shielding from static magnetic fields usually uses materials with high magnetic permeability.