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SSC JE 2017: Electromagnetic Field Theory Rankers Quiz 6
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Question 1
The magnetic flux density in the core in Fig. is
Question 2
A magnetising force of 800 AT/m will produce a flux density of in air.
Question 3
The B-H curve for……. will be a straight line passing through the origin.
Question 4
A 2 cm long coil has 10 turns and carries a current of 750 mA. The magnetizing field of the coil is
Question 5
When a magnet is moved with its N-pole towards a closed coil, the nearer end of the coil acts as
Question 6
Dielectric strength of medium ______.
Question 7
Two capacitors of capacitances and in series will have a total capacitance of
Question 8
When switch in Fig. is closed, the voltage across the capacitor will be 100 V in about
Question 9
Four metallic plates, each of surface area on one side, are placed at a distance from each other. The plates are connected as shown in Figure. Then capacitance of the system between and is
Question 10
When a capacitor is charged from a battery,
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