A capacitor stores 10 C charge when connected across a battery. W… - Vidyadip

MCQ

A capacitor stores $10 \mu C$ charge when connected across a battery. When the gap between the plates is filled with a dielectric, a charge of $2 0 \mu C$ flows through the battery. Find the dielectric constant of the dielectric.

A
$K =2$
✓
$K =3$
C
$K=4$
D
$K =1$

✓

Answer

Correct option: B.

$K =3$

(B) $K =3$
$\frac{10 \mu C }{ C }=\frac{(10+20) \mu C }{ kC }$
k = 3

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