Question

An electric iron of 1100 W is operated for 2 hrs daily. What will be the electrical consumption expenses for that in the month of April? (The electric company charges Rs 5 per unit of energy).

Answer 1

Video Solution :

Text solution 

 

Answer 2

Given:

• Power of electric iron = 1100 W
• Time electric iron is operated daily = 2 hours = 7200 seconds
• Rate of energy by the electric company = Rs 5 per unit

To find:

• Electrical consumption expenses for the electric iron in the month of April

Solution:

1. Calculate energy consumption in one day: Energy consumption in one day = Power x Time = 1100 W x 7200 s = 7,920,000 J

2. Calculate energy consumption in April: Energy consumption in April = Energy consumption in one day x number of days in April = 7,920,000 J/day x 30 days = 237,600,000 J

3. Calculate number of units consumed: Number of units consumed = Energy consumed / energy per unit = 237,600,000 J / (3.6 x 10^6 J/unit) = 66 units

4. Calculate total cost: Total cost = Number of units consumed x rate per unit = 66 units x Rs 5/unit = Rs 330

Therefore, the electrical consumption expenses for the electric iron in the month of April will be Rs 330.