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CBSE Notes 2011-2012 » X-Science-Part1

Magnetic Effects of Electric Current

At the time of short circuit, the current in the circuit

Multiple choice question

At the time of short circuit, the current in the circuit

Choose the incorrect statement from the following regarding magnetic lines of field

Multiple choice question

Choose the incorrect statement from the following regarding magnetic lines of field

Over-loading Less devices Short-circuiting _______

Multiple choice question

Over-loading Less devices
Short-circuiting _______

In a magnetic field Moving charge Force Rotating coil __________

Multiple choice question

In a magnetic field
Moving charge Force
Rotating coil __________

When North pole approaches a coil, the front side of the coil will show __________ current.

Multiple choice question

When North pole approaches a coil, the front side of the
coil will show __________ current.

A : A transformer does not work in direct current. B : Current rating of the fuse wire increases wit...

Multiple choice question

A : A transformer does not work in direct current.
B : Current rating of the fuse wire increases with its thickness.
C : Solenoid is a dipole.

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