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Computer Science - Electronic Principles - Discussion

Discussion Forum : Electronic Principles - Section 3 (Q.No. 2)
Electronic Principles
2.
The core of an electromagnet is said to be in saturation when:
the core is permitted to move freely within the coil
an increase in current through the coil causes no further increase in the mmf
frequent changes in the direction of current through the coil causes heating effects in the core material
changing the polarity of the current in the coil changes the polarity of the magnetic field around the core
None of the above
Answer: Option
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