Work, Power and EnergyHard
Question
Energy conservation law says that :-
Options
A.Energy can′t be destroyed but can be produced
B.Neither energy can be produced nor can be destroyed
C.Energy can be destroyed but can′t be produced
D.Energy can be produced and can be destroyed
More Work, Power and Energy Questions
A ring of radius R carries a charge + q A test charge - q0 is released on its axis at a distance√3 R from its cent...An object of mass 0.2 kg executes simple harmonic motion along x-axis with frequency of 25/π Hz. At the position x ...A 220 volt, 1000 watt bulb is connected across a 110 volt mains supply. The power consumed will be...Potential energy of a system comprising of point charges is U1.When a charge q is added in the system without disturbing...A carnot engine takes 3 × 106 cal of heat from a reservoir at 627oC, and gives it to a sink at 27oC. The work done ...