AIPMT 2009 | Electromagnetic Induction Question 21 | Physics

A rectangular, a square, a circular and an elliptical loop, all in the (x-y) plane, are moving out of a uniform magnetic field with a constant velocity. $$\overrightarrow V = v\widehat i$$. The magnetic field is directed along the negative z axis direction. The induced emf, during the passes of these loops, out of the field region, will not remain constant for

The circular and the elliptical loops

only the ellliptical loop

any of the four loops

the rectangular, circular and elliptical loops

AIPMT 2009

MCQ (Single Correct Answer)

-1

A conducting circular loop is placed in a uniform magnetic field 0.04 T with its plane perpendicular to the magnetic field. The radius of the loop starts shrinking at 2 mm/s. The induced emf in the loop when the radius is 2 cm is

4.8$$\pi $$$$\mu $$V

0.8$$\pi $$$$\mu $$V

1.6$$\pi $$$$\mu $$V

3.2$$\pi $$$$\mu $$V

AIPMT 2008

MCQ (Single Correct Answer)

-1

A long solenoid has 500 turns. When a current of 2 ampere is passed through it, the resulting magnetic flux linked with each turn of the solenoid is 4 $$ \times $$ 10^$$-$$3 Wb. The self-inductance of the solenoid is

1.0 henry

4.0 henry

2.5 henry

2.0 henry

AIPMT 2008

MCQ (Single Correct Answer)

-1

A circular disc of radius 0.2 meter is placed in a uniform magnetic field of induction $${1 \over \pi }\left( {{{Wb} \over {{m^2}}}} \right)$$ in such a way that its axis makes an angle of 60^o with $$\overrightarrow B .$$ The magnetic flux linked with the disc is

0.08 Wb

0.01 Wb

0.02 Wb

0.06 Wb

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