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Magnetism and Electromagnetism

Magnetism and Electromagnetism
A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be

BLI2
Zero
None of the listed here
BLI

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Magnetism and Electromagnetism
Which of the following is the unit of magnetic flux density?

Weber
Tesla
Lumens
None of the listed here

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Magnetism and Electromagnetism
If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage

remains unchanged
reverses polarity
decreases
increases

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Magnetism and Electromagnetism
The change of cross-sectional area of conductor in magnetic field will affect

both of the listed here
None of these
reluctance of conductor
resistance of conductor

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Magnetism and Electromagnetism
How does the magnetic compass needle behave in a magnetic field?

It assures a position which follows a line of magnetic flux
It assures a position right angle to magnetic field
It starts rotating
None of the listed here

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Magnetism and Electromagnetism
The voltage induced across a certain coil is 200 mV. A 120 resistor is connected to the coil terminals. The induced current is

16 mA
1.7 mA
120 mA
12 mA

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MORE MCQ ON Magnetism and Electromagnetism

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