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 is given by formula U=100-5x + 100x^(2), where U and are .

The energy stored in coil carrying current I is U. If the current is halved, then the energy stored in the coil will be

A current i_1 = i_10 sin omegat passes through a resistor of resistance R . How much thermal energy is produced in one time period? A current i_2 = -i_0 sin omegat passes through the resistor. How much thermal energy is produced in one time period? If i_1 and i_2 both pass through the resistor simultaneously, how much thermal energy is produced? Is the principle of superposition obeyed in this case?

A nuclear reactor using .^(235)U generates 250 MW of electric power. The efficiency of the reactor (i.e., efficiency of conversion of thermal energy into electrical energy) is 25% . What is the amount of .^(235)U used in the reactor per year? The thermal energy released per fission of .^(235)U is 200 MeV .

Potential energy vs. time given U = (k X^2)/2 .Plot graph of U vs. t.

The I.U.P.A.C. name of neopentane is

Let widehat u=u_(1)hat i+u_(2)hat j+u_(3)hat k be a unit vector in be a unit vector in R^(3) and widehat w=(1)/(sqrt(6))(hat i+hat j+2hat k). Given that there exists vector hat v in R^(3) such that |widehat u xxvec v|=1 and widehat w.(widehat u xxvec v)=1. Which of the following statement(s) is(are) correct?

When a spring is compressed by a distance 'x' , the potential energy stored is U_(1) . It is further compressed by a distance '2x' , the increase in potential energy is U_(2) . The ratio of U_(1):U_(2)