Changing the dielectric of two charged parallel plates of a capacitor from vacuum to mica will produce what effect on the capacitor
a. it will increase the charge
b. it will decrease the charge
c. it will increase the capacitance
d. it will decrease the capacitance.

option (c)

Explanation:

The formula for the parallel plate capacitance is given by

C = ∈o A / d

Where, A be the area of plates and d be the distance between the plates.

if a dielectric between the plates

Then the capacitance becomes C' = K ∈o A / d

Where, K be the dielectric constant of mica.

As we know that the value of K is more than 1 so the capacitance C is more than C.

So, capacitance will increase.

answer: hey stupid

what the hell you doing i need you at my house

explanation: it's me king omoregie

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.