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AIIMS 2012

Exam: AIIMS
Year: 2012
Subject: Physics
Chapter: Magnetic Effects of Current

AIIMS 2012 · Physics · Magnetic Effects of Current

The minimum magnetic dipole moment of electron in hydrogen atom is

The minimum magnetic dipole moment of electron in hydrogen atom is

Options

A $\frac{e h}{2 \pi m}$
B $\frac{e h}{4 \pi m}$
C $\frac{e h}{ \pi m}$
D $0$

Correct answer

B. $\frac{e h}{4 \pi m}$

Step-by-step solution

Magnetic dipole moment of electron in an atom is given as

M=\frac{n e h}{๑ \pi m}=n \mu_B

where,

n=

number of orbit

\mu_B=

Bohr Magneton For minimum dipole moment,

n=1

\therefore \quad M=\frac{e h}{@ \pi m}

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