Question

a lamp consumed 2500j of electric energy in 47s .what is the power of the lamp also find the electric energy consumed in unit .the lamp operate for 7hours daily for 26days

urgent please!!!!

Answer 1

given,

energy consumed= 2500 j

time= 47s

power = energy consumed\ time

= 2500\47

=53.2 watt

now total time = 7 x 26 x 3600 s

= 655200 s

e = px t

= 53.2 x 655200

≈ $=3.5\times 10^{7} J$