This chapter tells us about electric charges, conductors and insulators. The units of charge, SI unit coloumb and the CGS system. We learn the Mathematical presentation of Coulomb’s law. We study electric field lines and electric flux. The solutions for this chapter have detailed answers to NCERT questions along with proper calculations and diagrams.
Electrostatic potential is calculated by work done upon the charge, and its SI unit is Volt. It can be positive or negative, depending on the charge. There are graphical representations of electrostatic potential given in the chapter, these make it easier to understand. The solutions for this chapter by Ekal Shiksha contain detailed answers to all NCERT questions.
The topics of this chapter, such as electric current, current carriers, drift velocity, ohm’s law, electrical resistance, current density, conductance, and electrical conductivity can seem difficult to a student when not understood properly. And if the concepts are not understood, it gets hard to solve the back exercise questions. The NCERT solutions by Ekal Shiksha can help you with solving the back exercise questions given in this chapter.
In this chapter, we study about how the magnetic field exerts forces on moving charged particles such as electrons, protons, and current carrying wires. A cyclotron uses both electric and magnetic fields in combination to increase the energy of moving charged particles. We understand the applications of Bio Savart’s law and applications of Ampere’s circuital law in a solenoid and a toroid. Check out the solutions for this chapter by Ekal Shiksha.
This chapter talks about the magnetic phenomena of nature. We learn about bar magnets and their magnetic field lines, bar magnets as an equivalent solenoid, and a dipole in a uniform magnetic field. We relate Gauss’s law of electrostatics to magnetism. The Earth also has a magnetic field around it and shows magnetic properties. Check out the solutions for this chapter by Ekal Shiksha.
This chapter begins by telling us about the experiments of Faraday and Henry on magnetism and electricity. A magnetic flux is described similarly to an electric flux. Faraday’s law of induction is stated in the chapter and we understand the mathematical representation of it. Another important topic of this chapter is the motional electromotive force. The solutions for this chapter by Ekal Shiksha help you to easily solve the questions given in the back exercise of the chapter.
There are numerous applications and uses of alternating current in our day-to-day life. Through this chapter, we understand the alternating currents scientifically. The topics of this chapter are AC voltage applied to a resistor, Representation of AC current and voltage by rotating vector, AC voltage applied to an inductor as well as a capacitor. Check out the solutions for this chapter by Ekal Shiksha.
Through this chapter, we understand about displacement current, sources and nature of electromagnetic waves. Electromagnetic waves include radio waves, microwaves, infrared waves, visible rays, ultraviolet rays, X rays, and gamma rays. The solutions for this chapter by Ekal Shiksha help you to easily solve the questions given in the back exercise of the chapter.
In this chapter we study the reflection of light by spherical mirrors, the mirror equation, refraction, total internal reflection, refraction at spherical surfaces and by lenses, power of a lens, refraction through a prism and some natural phenomena sue to sunlight. Check out the solutions for this chapter by Ekal Shiksha.
This chapter teaches us about Huygens Principle, refraction and reflection of plane waves using Huygens Principle, the doppler effect, coherent and incoherent addition of waves, interference of light waves and Young’s experiment, diffraction, polarisation by scattering and by reflection. Check out the solutions for this chapter curated by experts at Ekal Shiksha.
This chapter is about the dual nature of radiation and matter and the topics that we study in this chapter are, electron emission, photoelectric effect under Hertz’s observations and Hallwach’s and Lenard’s observations, the experimental study of the photoelectric effect, the wave theory of light, Einstein’s photoelectric equation, and some others. Check out the solutions for this chapter by Ekal Shiksha which have detailed answers to NCERT questions.
In this chapter, we learn about atoms, which are very small particles. The topics that we study in this chapter are alpha-particle scattering, Rutherford’s nuclear model of an atom, alpha-particle trajectory, atomic spectra, Bohr model of the hydrogen atom, the line spectra of the hydrogen atom. The solutions for this chapter by Ekal Shiksha have detailed answers to questions given in the back exercise of the chapter.
This chapter tells us about the atomic masses and composition of nucleus, the discovery of neutron, size of the nucleus, mass energy and nuclear binding energy, nuclear force, radioactivity, law of radioactivity decay, alpha beta and gamma decay, and nuclear energy. The solutions for this chapter by Ekal Shiksha help you to easily solve the questions given in the back exercise of the chapter.
In this chapter, we classify the metals, conductors and semiconductors on the basis of conductivity and energy bands. This chapter taches us about intrinsic and extrinsic semiconductor which can be of n-type and p-type, the p-n junction, semiconductor diode, application of junction diode as a rectifier, digital electronics and logic gates. The solutions for this chapter by Ekal Shiksha have detailed answers to questions given in the back exercise of the chapter.