Question
Describe experiment of two coils explaining electromagnetic induction.
✓
Answer
→As shown in figure, two coils $C _1$ and $C _2$ are kept facing each other.
→Galvanometer is connected with $C _1$ and Battery is connected with $C _2$.
→On passing steady current through coil $C _2$, magnetic field is produced around it.
→On moving $C _2$ towards $C _1$, galvanometer shows deflection. It indicates that electric current is induced in $C _1$.
→On moving $C _2$ away from $C _1$, galvanometer shows deflection in opposite direction.
→Keeping $C _2$ stationary, on moving $C _1$ closer to or away from $C _2$, we get same results as above.
→Thus, here electric current is induced due to relative motion between both coils.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Derive the formula for the magnetic fieid produced by a current-carrying circular coil as a magnetic dipole on its axis and equator. (Perpendicular bisector.)
State four properties of electro magnetic waves.
A parallel plate capacitor of capacitance C is charged to a potential V. It is then connected to another uncharged capacitor having the same capacitance. Find out the ratio of the energy stored in the combined system to that stored initially in the single capacitor.
Calculate the shortest wavelength of the spectral lines emitted in Balmer series.
[Give Rydberg constant, R = 107 m-1]
Two metal strips, each of length l, are clamped parallel to each other on a horizontal floor with a separation b between them. A wire of mass m lies on them perpendicularly, as shown in A vertically-upward magnetic field of strength B exists in the space. The metal strips are smooth but the coefficient of friction between the wire and the floor is $\mu.$ A current i is established when the switch S is closed at the instant t = 0. Discuss the motion of the wire after the switch is closed. How far away from the strips will the wire reach?
→Show that the internal energy of the air (treated as an ideal gas) contained in a room remains constant as the temperature changes between day and night. Assume that the atmospheric pressure around remains constant and the air in the room maintains this pressure by communicating with the surrounding through the windows, doors, etc.
Calculate the capacitance of capacitor C if the equivalent capacitance of the connection between $A$ and $B$ is $15 \mu F$.
→Write the law of conservation of electric charge
The angular magnification of a system is less than one. Does it mean that the image formed is inverted?
A bar magnet is kept in a uniform magnetic field such that its magnetic moment is at an angle with the direction of $\overrightarrow{ B }$. Write an expression for potential energy of this system. When it will be minimum?
→