Question
Explain Oersted's experiment. What conclusions were drawn from it? What do you understand by magnetic field? How direction and intensity of magnetic field determined?

Answer

SELF

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Consider the situation shown in figure. The plates of the capacitor have plate area A and are clamped in the laboratory. The dielectric slab is released from rest with a length a inside the capacitor. Neglecting any effect of friction or gravity, show that the slab will execute periodic motion and find its time period.
An adiabatic vessel of total volume V is divided into two equal parts by a conducting separator. The separator is fixed in this position. The part on the left contains one mole of an ideal gas (U = 1.5nRT) and the part on the right contains two moles of the same gas. Initially, the pressure on each side is p. The system is left for sufficient time so that a steady state is reached. Find,
  1. The work done by the gas in the left part during the process.
  2. The temperature on the two sides in the beginning.
  3. The final common temperature reached by the gases.
  4. The heat given to the gas in the right part.
  5. The increase in the internal energy of the gas in the left part.
Consider the situation of the previous problem. A charges of $-2.0 \times 10^{-4}C$ is moved from the point A to the point B. Find the change in electrical potential energy $U_B - U_A$ for the cases (a), (b) and (c).
Consider the arrangement shown in figure. By some mechanism, the separation between the slits $S_3$ and $S_4$ can be changed. The intensity is measured at the point P which is at the common perpendicular bisector

of $S_1S_2$ and $S_3S_4$. When $\text{z}=\frac{\text{D}\lambda}{2\text{d}},$ intensity measured at P is I. Find this intensity when z is equal to:
  1. $\frac{\text{D}\lambda}{\text{d}}$
  2. $\frac{3\text{D}\lambda}{2\text{d}}$
  3. $\frac{2\text{D}\lambda}{\text{d}}$
An electron is emitted with negligible speed from the negative plate of a parallel-plate capacitor charged to a potential difference V. The separation between the plates is d and a magnetic field Bexists in the space, as shown in the figure. Show that the electron will fail to strike the upper plates if $\text{d}>\Big(\frac{2\text{m}_\text{e}\text{v}}{\text{eB}^2}\Big)^{\frac{1}{2}}.$
  1. The magnetic field in a region varies as shown in figure. Calculate the average induced emf in a conducting loop of area $2.0 \times 10^{-3}m^2$ placed perpendicular to the field in each of the 10ms intervals shown.
  2. In which intervals is the emf not constant? Neglect the behaviour near the ends of 10ms intervals.
Twelve wires, each of equal resistance r, are joined to form a cube, as shown in the figure. Find the equivalent resistance between the diagonally opposite points a and f.
Figure shows two parallel wires separated by a distance of 4.0cm and carrying equal currents of 10A along opposite directions. Find the magnitude of the magnetic field B at the points $A_1, A_2, A_3$ and $A_4.$​​​​​​​
Calculate the work done in moving a test charge q0 from point A to point B against the repulsive force acting on it due to the other charge Q > 0 located at the origin.
A concave mirror forms an image of 20cm high object on a screen placed 5.0m away from the mirror. The height of the image is 50cm. Find the focal length of the mirror and the distance between the mirror and the object.