28. In which of the following circuits will R. not have current while Rx does have current through it? R
W
ਸਨੂੰ
R
AB
Rਰੂ
PRZ
W
B R
(2)

hello there!

your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.

3. dark matter

empty space could also be a simple vacuum

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

gravitational energy

electrical energy

kinetic energy

ligh energy