Question

A capacitor has a charge 50uc. When the gap is filled by glass wool 120uc charge flows. Dielectric.constant of glass wool is?

Answer 1

Answer:

Before filled wool the charge on capacitor is Q

After filled wool the charge on capacitor is Q

′

=kQ where k= dielectric constant.

So charge flow through the battery is Q

′

−Q=120⇒Q

′

=120+Q=120+50=170

thus,kQ=170⇒k=

50

170

=3.4