Question
Explain the experiments of Faraday and Henry for explaining and describing the phenomenon of electromagnetic induction.
✓
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.
Explore more
Similar questions
Consider a metal ring kept (supported by a cardboard) on top of a fixed solenoid carrying a current I (see Fig). The centre of the ring coincides with the axis of the solenoid. If the current in the solenoid is switched off, what will happen to the ring?
A capacitor of capacitance $2.0\mu\text{F}$ is charged to a potential difference of $12V.$ It is then connected to an uncharged capacitor of capacitance $4.0\mu\text{F}$ as shown in figure. Find:
→- The charge on each of the two capacitors after the connection.
- The electrostatic energy stored in each of the two capacitors.
- The heat produced during the charge transfer from one capacitor to the other.
Four particles of equal masses M move along a circle of radius R under the action of their mutual gravitational attraction. Find the speed of each particle.
A sound wave of frequency 100Hz is travelling in air. The speed of sound in air is 350m/s.
- By how much is the phase changed at a given point in 2.5ms?
- What is the phase difference at a given instant between two points separated by a distance of 10.0cm along the direction of propagation?
An electron of kinetic energy 100eV circulates in a path of radius 10cm in a magnetic field. Find the magnetic field and the number of revolutions per second made by the electron.
Two coils $A$ and $B$ have inductances $1.0H$ and $2.0H$ respectively. The resistance of each coil is $10\Omega.$ Each coil is connected to an ideal battery of emf $2.0V$ at $t = 0$ Let $i_A$ and $i_B$ be the currents in the two circuit at time $t$. Find the ratio $\frac{\text{i}_\text{A}}{\text{i}_\text{B}}$
→- $t = 100ms$
- $t = 200ms$
- $t = 1s.$
Consider the situation in figure. The bottom of the pot is a reflecting plane mirror, S is a small fish and T is a human eye. Refractive index of water is.
- At what distance(s) from itself will the fish see the image(s) of the eye?
- At what distance(s) from itself will the eye see the image(s) of the fish.
What are N-type semiconductors? Their conductivity is higher than that of pure semiconductors. Why? Explain with figure.
A particle with a charge of $5.0 µC$ and a mass of $5.0 \times 10^{-12}kg$ is projected with a speed of $1.0\ km s^{-1}$ in a magnetic field of magnitude $5.0mT.$ The angle between the magnetic field and the velocity is $\sin^{-1} (0.90).$ Show that the path of the particle will be a helix. Find the diameter of the helix and its pitch.
→The relaxation time $τ$ is nearly independent of applied $E$ field whereas it changes significantly with temperature $T.$ First fact is $($in part$)$ responsible for Ohm’s law whereas the second fact leads to variation of $\rho$ with temperature. Elaborate why?
→