What are two kinds of electricity?

The two kinds of electricity are:


Related Questions

  1. What is balance point in potentiometer?
  2. What is a DC Potentiometer?
  3. Why High Resistance Is Used In Potentiometer?
  4. How is potential gradient measured?
  5. What Is Balancing Length In Potentiometer?

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CBSE CLASS XII Related Questions

  • 1.
    Draw the plot of potential energy of a pair of nucleons as a function of their separation. Write two important conclusions that can be drawn from this plot.


      • 2.

        A rectangular loop of size 5 cm $\times$ 8 cm is lying in the $x$-$y$ plane in a uniform magnetic field $\vec{B} = (2.0\ \text{T})\hat{k}$. The total magnetic flux linked with the loop is:

          • 80 Wb
          • 16 Wb
          • \(8 \times 10^{-2}\) Wb
          • \(8 \times 10^{-3}\) Wb

        • 3.

          A parallel beam of monochromatic light falls normally on a single slit of width $a$ and a diffraction pattern is observed on a screen placed at distance $D$ from the slit. Explain:

          (I) the formation of maxima and minima in the diffraction pattern, and

          (II) why the maxima go on becoming weaker and weaker with its increasing number $n$.


            • 4.

              A ray of light MN is incident normally on the face corresponding with side AB of a prism with an isosceles right-angled triangular base ABC. Trace the path of the ray as it passes through the prism when the refractive index of the prism material is (i) $\sqrt{2}$, and (ii) $\sqrt{3}$.


                • 5.

                  (I) The real image of an object placed between $f$ and $2f$ from a convex lens can be seen on a screen placed at the image location. If the screen is removed, is the image still there? Explain.

                  (II) Plane and convex mirrors produce virtual images of objects. Can they produce real images under some circumstances? Explain.


                    • 6.

                      An electron is revolving around a proton in a circular orbit of radius $r$. Using classical physics, prove that the ratio of value of the angular momentum and the value of magnetic moment of electron revolving in the orbit is a constant.

                        CBSE CLASS XII Previous Year Papers

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