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` ?

In step deviation method , u_i is given by ,

The field due to a long straight wire carrying a current I is proportional to …..

Check the dimensional correctness for the given equation. (a) v=u+at (b) s=ut+1/2at^2

A current i_1 = i_0 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?

An alternating current is given by I = i_1 cos omegat + i_2 sin omegat . The rms current is given by

A resistor develops 400J of thermal energy in 10 s when a current of 2A is pased through it. (a) Find its resistance . (b) If the current is increased to 4 A, what will be the energy developed in 10 s.

Given that the drawn ball from U2 is white, the probability that head appeared on the coin