Question
Explain what is quantization of charge and conservation of charge?
✓
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
In a Young's double slit experiment, the separation between the slits = 2.0mm, the wavelength of the light = 600nm and the distance of the screen from the slits = 2.0m. If the intensity at the centre of the central maximum is $0.20W/ m^2,$ what will be the intensity at a point 0.5cm away from this centre along the width of the fringes?
→A gun of mass M fires a bullet of mass m with a horizontal speed V. The gun is fitted with a concave mirror of focal length f facing tpwards the receding bullet. Find the speed of separation of the bullet and the image just after the gun was fired.
A right angled prism of refractive index n has a plane of refractive index $n_1$ so that $n_1 < n$, cemented to its diagonal face. The assembly is in air. A ray is incident on AB.
→- Calculate the angle of incidence at AB for which the ray strikes the diagonal face at the critical angle.
- Assuming n = 1.352, calculate the angle of incidence at AB for which the refracted ray passes through the diagonal face undeviated.
Two samples A and B, of the same gas have equal volumes and pressures. The gas in sample A is expanded isothermally to double its volume and the gas in B is expanded adiabatically to double its volume. If the work done by the gas is the same for the two cases, show that $\gamma$ satisfies the equation $1-2^{1-\gamma}=(\gamma-1)\text{ln}2.$
→Consider the situation of the previous problem. Consider the fastest electron emitted parallel to the large metal plate. Find the displacement of this electron parallel to its initial velocity before it strikes the large metal plate.
A town has a population of 1 million. The average electric power needed per person is 300W. A reactor is to be designed to supply power to this town. The efficiency with which thermal power is converted into electric power is aimed at 25%.
→- Assuming 200MeV to thermal energy to come from each fission event on an average, find the number of events that should take place every day.
- Assuming the fission to take place largely through $^{235}U,$ at what rate will the amount of $^{235}U$ decrease? Express your answer in kg per day.
- Assuming that uranium enriched to 3% in $^{235}U$ will be used, how much uranium is needed per month (30 days)?
A capacitor of capacitance $10\mu\text{F}$ is connected to an oscillator with output voltage $\in=(10\text{V})\sin\omega\text{t}.$ Find the peak currents in the circuit for $\omega=10\text{s}^{-1},100\text{s}^{-1},500\text{s}^{-1},1000\text{s}^{-1}.$
→A group of students while coming from the school noticed a box marked "Danger H.T. 2200 V" at a substation in the main street. They did not understand the utility of such a high voltage, while they argued, the supply was only 220 V.They asked their teacher this question the next day. The teacher thought it to be an important question and therefore explained to the whole class.
Answer the following questions:
Answer the following questions:
- What device is used to bring the high voltage down to low voltage of a.c. Current and what is the principle of its working?
- Is it possible to use this device for bringing down the high d.c. Voltage to the low voltage? Explain.
- Write the values displayed by the students and the teacher.
Suppose the ends of the coil in the previous problem are connected to a resistance of $100\Omega.$ Neglecting the reaiatance of the coil, find the heat produced in the circuit in one minute.
→Two particles, each with mass m are placed at a separation d in a uniform magnetic field B, as shown in the figure. They have opposite charges of equal magnitude q. At time t = 0, the particles are projected towards each other, each with a speed v. Suppose the Coulomb force between the charges is switched off.
→- Find the maximum value $v_m$ of the projection speed, so that the two particles do not collide.
- What would be the minimum and maximum separation between the particles if $\text{v}=\text{v}_{\text{m}}\sqrt{2}?$
- At what instant will a collision occur between the particles if $v = 2v_m?$
- Suppose $v = 2v_m$ and the collision between the particles is completely inelastic. Describe the motion after the collision.