Which of the following is the main characteristic of electromagnets that makes them useful in cranes and doorbells...? Mcqs

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💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Which of the following is the main characteristic of electromagnets that makes them useful in cranes and doorbells...?

(A) They are very strong

(B) They are permanent

(C) They can be switched on and off

(D) They are very heavy

✅ Correct Answer: They can be switched on and off

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Source: This question is taken from the Everyday Science

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