Which one of the following expresses the electrical energy consumed by a device of…

PHYSICS · Single correct · A Level · Physics · Electricity · Electricity

Problem

Which one of the following expresses the electrical energy

E

consumed by a device of power

P

operated for time

t

? (a)

E = \dfrac{P\,t}{1000}

(b)

E = 3600\,P\,t

(c)

E = P\,t

(d)

E = \dfrac{P\,t}{3600}