Ncert solutions
Our top 5% students will be awarded a special scholarship to Lido.

Work and Energy | Work and Energy - Exercise 11.5

Question 3

A battery lights a bulb. Describe the energy changes involved in the process.

Looking to do well in your science exam ?  
Learn from an expert tutor. Book a free class!

When a bulb is connected to a battery, then the energy of the battery is transferred into voltage. Once the bulb receives this voltage, then it converts it into light-weight and warmth energy. Hence, the transformation of energy within the given situation may be shown as:

Chemical Energy → Electrical Energy → Light Energy + Heat Energy.

E k = K.E. of the thing moving with a rate, v

K.E. once the thing was moving with a rate of five m s-1

1 (E k) 5 = two × twenty × (5)

= 250 J

Kinetic energy once the thing was moving with a rate of two m s-1 one

(E k) 2 = two x twenty × (2)

= 40 J

Set your child up for success with Lido, book a class today!

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta

Question 3

A battery lights a bulb. Describe the energy changes involved in the process.

Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

When a bulb is connected to a battery, then the energy of the battery is transferred into voltage. Once the bulb receives this voltage, then it converts it into light-weight and warmth energy. Hence, the transformation of energy within the given situation may be shown as:

Chemical Energy → Electrical Energy → Light Energy + Heat Energy.

E k = K.E. of the thing moving with a rate, v

K.E. once the thing was moving with a rate of five m s-1

1 (E k) 5 = two × twenty × (5)

= 250 J

Kinetic energy once the thing was moving with a rate of two m s-1 one

(E k) 2 = two x twenty × (2)

= 40 J

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
Connect with us on social media!
2021 © Quality Tutorials Pvt Ltd All rights reserved
`