Question

an electric bulb 40 watt and 1 horsepower electric motor used for 5 hours and half hour respectively how many units of electricity will be consumed?
prepare electric bill for January month 4.25 rupees per unit

its 6 mark question i need explanation

so please answer in deep
I will mark them as brainlist​

Answer 1

Given:-

P = 40W = 0.04 kW

t = 5.5 hours

cost = 4.25 per unit

To find:-

Bill paid for January month

Solution:-

$\large\rm { E = Pt}$

$\large\rm { E = 0.04 \times 5.5}$

$\large\rm { E = 2.2 \ kWh}$

Bill to be paid for 1 day:-

$\large\rm { 2.2 \times 4.25}$

₹ $\large\rm { 9.35}$ we have to pay for 1 day.

Now, we know that,

January = 31 days

so, cost for January Month = 9.35×31

$\large\rm{\boxed{ = ₹289.85}}$