MCQ
Which statement is NOT true for an electromagnet?
- AIt is made of soft iron.
- BIts magnetic field strength can be changed.
- ✓The polarity of an electromagnet cannot be changed.
- DIt can easily be demagnetised.
✓
Answer
Correct option: C.
The polarity of an electromagnet cannot be changed.
(c)
The polarity of an electromagnet cannot be changed.
Explanation:
The polarity of an electromagnet can indeed be changed by reversing the current's direction flowing through its solenoid.
The polarity of an electromagnet cannot be changed.
Explanation:
The polarity of an electromagnet can indeed be changed by reversing the current's direction flowing through its solenoid.
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