Question

an electric iron of heating element of resistance 88 Q is used at 220 volt for 2 hours. the electrical energy spent in unit will be
(A) 0.8
(B) 1.1
(C) 2.2
(D) 8.8

Answer 1

Answer:

See,

E = P × t

= 0.22×220÷88×2

=1.1kWh

=(B)1.1units