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प्रश्न
Fill in the boxe to show the corresponding energy transformation.
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उत्तर
Mechanical energy ⇌ electrical energy
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संबंधित प्रश्न
Ravi applied a force of 10 N and moved a book 30 cm in the direction of the force. How much was the work done by Ravi?
Complete the following sentences:
Joule is the unit of .......
State the energy changes which take place when A piece of magnesium wire is burnt in a jar of oxygen.
Can two agents, doing the same work, have different power?
What are the advantages and disadvantages of using solar cells for producing electricity?
(i) A 200g ball is thrown vertically upward with an initial velocity of 30 ms-1. Draw a velocity-time graph for the motion of ball.
(ii) How long will the ball take to reach the highest point?
(iii) What will be the kinetic energy of ball, when it returns to the starting point, neglecting the air resistance?
(iv) What will be the potential energy of ball at highest point?
What is work?
A uniform chain of length 2 m is kept on a table such that a length of 60 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg. What is the work done in pulling the entire chain on the table?
