Physics Test-28...

The energy stored in a 50 mH inductor carrying a current of 4 A will be:

Which of the following option is related to charles' law:

If the kinetic energy of an electron in the first orbit of \(H\) atom is \(13.6 eV\). Then the total energy of an electron in the second orbit of \(He ^{+}\)is:

In the equation \(A=3 B C^{2}\), A and \(C\) have dimensions of capacitance and magnetic induction respectively. In \(M K S Q\) system, the dimensional formula of \(B\) is:

The equilibrium constant for the disproportionation of \(\mathrm{HgCl}_{2}\) into \(\mathrm{HgCl}^{+}\) and \(\mathrm{HgCl}_{3}^{-}\) is,

Given,

\(\mathrm{HgCl}^{+}+\mathrm{Cl}^{-} \rightleftharpoons \mathrm{HgCl}_{2} ; \mathrm{K}_{1}=3 \times 10^{6}\)

\(\mathrm{HgCl}_{2}+\mathrm{Cl}^{-} \rightleftharpoons \mathrm{HgCl}_{3}^{-} ; \mathrm{K}_{2}=9.0\)

The escape velocity of a body depends upon mass as:

A plane Electromagnetic Wave of frequency \(30 \mathrm{~MHz}\) travels in free space along the \(x\) - direction. The electric field component of the wave at a particular point of space and time \(E=6 \mathrm{~vm}^{-1}\) along \(y\)-direction. Its magnetic field component \(B\) at this point would be:

The number of particles pen unit volume is given by \(n=-\frac{D n_{2}-n_{1}}{x_{2}-x_{1}}\) are crossing a unit area perpendicular to \(x\) -axis in unit time, when \(n_{1}\) and \(n_{2}\) are the number of particles per unit volume for the values \(x_{1}\) and \(x_{2}\) of \(x\) respectively. Then the dimensional formula of diffusion constant D is:

Across a metallic conductor of a non-uniform cross-section, a constant potential difference is applied. The quantity which remains constant along the conductor is: