On a sunny summer day, the intensity of sunlight at the earth's surface is about 1000 w/m2. what are the peak electric and magnetic fields in this sunlight?

peak value of magnetic field is

peak value of electric field is

Explanation:

As we know that the intensity of electromagnetic waves is given by the formula

here we have

now we have

now peak value of electric field is given as

So the peak value of electric field is given as

Now we have relation between electric field and magnetic field as

it takes about 30 days for it to break down

energy stored in the capacitor= 9.72 x 10⁻⁴ j

explanation:

the energy stored in the capacitor is given by

e= 1/2 c v²

e= energy stored

c= capacitance= 1.5 µc= 1.5 x 10⁻⁶f

v= potential difference=36 v

so energy stored= e= 1/2 (1.5 x 10⁻⁶) (36)²

energy stored= 9.72 x 10⁻⁴j