A family uses 250 units of electrical energy during a month. Calculate this electrical energy in joules.
Text Solution
Verified by Experts
250 units of electrical energy means 250 kWh of electrical energy. Now, we know that : 1 kWh of energy ` = 3.6 xx 10^(6) J` So, 250 kWh of energy `= 3.6 xx 10^(6) xx 250 J` `= 9 xx 10^(8)J` Thus, 250 units of electrical energy is equal to `9 xx 10^(8)` joules.
LAKHMIR SINGH & MANJIT KAUR|Exercise Long Answer Type Questions|2 Videos
SOUND
LAKHMIR SINGH & MANJIT KAUR|Exercise Value Based Questions|20 Videos
Similar Questions
Explore conceptually related problems
The unit of electric energy is :
Define unit of electric energy?
A certain household has consumed 250 units of electric energy during a month.How much energy is this in joules ?
(a) Derive the relation between commercial unit of energy (kWh) and SI unit of energy (joule). (b) A certain household consumes 650 units of electricity in a month. How much is this electricity in joules ?
An electric heater uses 600 kJ of electrical energy in 5 minutes. Calculate its power rating.
State SI and practical units of electrical energy .
LAKHMIR SINGH & MANJIT KAUR-WORK AND ENERGY-Multiple Choice Questions
