Which one of the following material is most suitable for making core of an electromagnet ? - Multiple Choice Question and Answer - TodayMCQs

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In sp3 hybridization the expected geometry of molecules will be__________________?
The relationship between Tesla and smaller unit Gauss of magnetic induction is given by_________________?
Which one of the following material is most suitable for making core of an electromagnet ?
A magnetic field___________________?
Two parallel wires carrying currents in the opposite directions____________________?
What is the value of the current in a wire of 10cm long at the right angle to a uniform magnetic field of 0.5 Weber/m2 when the force acting on the wire is 5N ?
Magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called____________________?
The net charge on n-type material is____________________?
In a semiconductors the charge carriers are ___________________?
Holes can exist in____________________?

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