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SSC JE Magnetic circuits Quiz 77
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Question 1
The mutual inductance between two unity coupled coils of 9H and 4H will be:
Question 2
A magnet is kept in the medium of air surrounded by an iron ring. The magnetic lines of force from the magnet will be:
Question 3
The series magnet of a single phase Energy meter consists of coil of _____.
Question 4
The relative permeability of paramagnetic material is __________.
Question 5
Reluctance offered by the magnetic circuit depends upon _______.
Question 6
A circuit has inductance of 2 H. If the circuit current changes at the rate of 10 A/sec, then self-induced emf is
Question 7
The B-H curve for ______________ will be a straight line passing through the origin.
Question 8
Magnetic lines of force coming from a magnet
Question 9
The unit of reluctance of magnetic circuit is
Question 10
A 2 cm long coil has 10 turns and carries a current of 750 mA. The magnetizing field of the coil is
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Aug 28ESE & GATE EE