Permanent magnetism is caused by _________

Permanent magnetism is caused by __________.

Question 1 / 2066636ee928f7522a1c519e16

Question 1 of 2066636ee928f7522a1c519e16

Permanent magnetism is caused by __________.

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Question 1 of 20

66636ee928f7522a1c519e16

Permanent magnetism is caused by __________.

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🔍 Key Concepts

• Permanent magnetism vs. induced magnetism in a steel ship • Difference between hard iron and soft iron magnetism • When during a ship's life the permanent magnetic field is mainly acquired

💭 Think About

• Ask yourself: which choice describes something that would create a lasting, built‑in magnetic field in the ship’s structure, even when the ship changes heading? • Which answers talk about effects that are temporary and change with the ship’s course or the local magnetic field, rather than staying fixed? • Think about when the ship’s steel is first strongly magnetized: is it during normal operations at sea, or earlier in the ship’s life?

✅ Before You Answer

• Identify which option specifically mentions hard iron (steel that retains magnetism) instead of soft iron. • Eliminate any options that clearly describe induced magnetism (magnetism that changes with heading or location). • Focus on the time frame: which option happens once and lasts, rather than continuously changing with operation or the ship’s orientation?

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Question 1 of 20

Permanent magnetism is caused by __________.

the horizontal component of the earth's magnetic field acting on the horizontal soft iron

the vertical component of the earth's magnetic field acting on the vertical soft iron

the earth's magnetic field affecting the ship's hard iron during construction

operation of electrical equipment and generators on board ship

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Question 1 / 2066636ee928f7522a1c519e16

Question 1 of 2066636ee928f7522a1c519e16

Permanent magnetism is caused by __________.

Back

Question 1 of 20

66636ee928f7522a1c519e16

Permanent magnetism is caused by __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed