The thermal energy developed in a current-carrying resistor is given by`U=i^(2)Rt`and also by`U=Vit.`should we say that U is proportional to`i^(2)`or to i?

The potential energy of a particle oscillating along x-axis is given as U=20+(x-2)^(2) Here, U is in joules and x in meters. Total mechanical energy of the particle is 36J . (a) State whether the motion of the particle is simple harmonic or not. (b) Find the mean position. (c) Find the maximum kinetic energy of the particle.

The potential energy between two atoms in a molecule is given by U=ax^(3)-bx^(2) where a and b are positive constants and x is the distance between the atoms. The atom is in stable equilibrium when x is equal to :-

The potential energy (U) of a body of unit mass moving in a one-dimension force field is given by U=(x^(2)-4x+3) . All units are in S.L

If potential energy due to attractive force in circular path of radius r is U=-k/(2r^2) , then its total energy = …... .

The velocity-time relation of an electron starting from rest is given by u=id, where k=2m//s^(2) . The distance traversed in 3 sec is:-

The potential energy of a particle of mass 1 kg moving along x-axis given by U(x)=[(x^(2))/(2)-x]J . If total mechanical energy of the particle is 2J then find the maximum speed of the particle. (Assuming only conservative force acts on particle)

The internal energy of a gas is given by U= 5 + 2PV . It expands from V_(0) to 2V_(0) against a constant pressure P_(0) . The heat absorbed by the gas in the process is :-

The current from an A.C. source is given by I = 2cos(omegat + phi) then rms value of current is ……

Heat produced in a current carrying conducting wire depends on current I, resistance R of the wire and time t for which current is passed. Using these facts, obtain the formula for heat energy