Question
Which of the following countries is the largest consumer
of coal as per the International Energy Agency?Solution
According to the International Energy Agency (IEA), China is the largest consumer of coal, accounting for a significant portion of global coal consumption.
A machine does 600 J of work in 2 minutes. Find its power.
A body of mass 3 kg has a velocity of 4 m/s. Find its kinetic energy.
Which physical quantity has unit “Joule/second”?
If a lens forms an image of magnification -2, what is the nature of the image?
What is the unit of electric current?
For a cell terminal potential difference is 3.5 V when circuit is open and reduces to 2.5 V when cell is connected to a resistance of R = 10Ω then...
An object initially at rest explodes into several fragments. If no external forces act during the explosion, the center of mass of the fragments will:
Which of the following gas is used in the manufacture of Vanaspati Ghee?
In a long solenoid of 200 turns/cm carrying a current i, the magnetic field at center is 6.28×10-2 T. If a second solenoid with 100 turns/c...
What is the SI unit of power?
Relevant for Exams:
