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SSC JE 2017: Electromagnetic Theory Rankers Quiz 2
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Question 1
A current of 2 A through a single turn coil sets up flux linkages of 4 Wb-turn. The inductance of the coil is…………
Question 2
An uncharged sphere of metal is placed inside a charged parallel plate capacitor. The lines of force look like
Question 3
The magnetic material used for. should have a large hysteresis loop.
Question 4
The B-H curve of……. will not be a straight line.
Question 5
The relation between permeance of a magnetic circuit and area of cross-section of the circuit is:
Question 6
Given two inductors L1 and L2. Their mutual inductance M satisfies
Question 7
The area enclosed by a circular coil of 200 turns is 10 cm2. Its plane is kept perpendicular to a magnetic field of 0.3 Wb/m2 and is rotated through 180 °. What is the change in magnetic flux?
Question 8
The current through a choke coil increases from zero to 6 A in 0.3 second and an induced e.m.f. of 30 V is produced. The inductance of the choke coil is
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Jul 27ESE & GATE EE
