AIPMT 2001 | Moving Charges and Magnetism Question 70 | Physics

AIPMT 2001

MCQ (Single Correct Answer)

-1

An electron having mass m and kinetic energy E anter in uniform magnetic field B perpendiculaly, then its frequency will be

$${{eE} \over {qvB}}$$

$${{2\pi m} \over {eB}}$$

$${{eB} \over {2\pi m}}$$

$${{2m} \over {eBE}}$$

AIPMT 2001

MCQ (Single Correct Answer)

-1

If number of turns, area and current through a coil is given by n, A and $$i$$ respectively then its magnetic moment will be

$$niA$$

$${n^2}iA$$

$$ni{A^2}$$

$${{ni} \over {\sqrt A }}$$

AIPMT 2000

MCQ (Single Correct Answer)

-1

The magnetic field at centre, P will be

AIPMT 2000 Physics - Moving Charges and Magnetism Question 21 English

$${{{\mu _0}} \over {4\pi }}$$

$${{{\mu _0}} \over {\pi }}$$

$${{{\mu _0}} \over {2\pi }}$$

$$4{\mu _0}\pi $$

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