Question

An electric iron operates from a 230V outlet and draws 8 amperes of current. At Rs.4/kWh how much does it cost to operate the iron for 2 hours?​

Answer 1

Explanation:

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Answer 2

Answer:

Correct option is

A

Rs.49.5

Given:

I=15A,V=220V,t=0.5×15=7.5hr

Energy is:

E=Pt=VIt

=220×15×7.5

=24.75 kWhr

Total cost =24.75×2=Rs.49.50