A conducting loop is placed in a uniform magnetic field with its … - Vidyadip

MCQ

A conducting loop is placed in a uniform magnetic field with its plane perpendicular to the field. An $emf$ is induced in the loop if

$(a)$ It is translated (inside the field)
$(b)$ It is rotated about its axis
$(c)$ It is rotated about a diameter
$(d)$ It is deformed

A
$a,\,b$
B
$b,\,c$
✓
$c,\,d$
D
$a,\,c,\,d$

✓

Answer

Correct option: C.

$c,\,d$

c
The $EMF$ induced in a loop is given as $E M F=-\frac{d \phi}{d t}$

Hence a change in flux through the loop is necessary for emf induction, which

happens only in case of options $C$ and $D.$

Hence correct answers are options $\mathrm{C}$ and $\mathrm{D}$.

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