AP EAMCET / TS EAMCET Physics - Electromagnetism and Modern Physics Syllabus

Physics - Electromagnetism and Modern Physics syllabus — full chapter and topic list

Expand any chapter to see its topics and sub-topics. This is the whole examinable outline for Physics - Electromagnetism and Modern Physics in AP EAMCET / TS EAMCET, not a summary of it.

1. 1

   Electrostatics

   3 topics

   • Electric Charges and Fields
     • Coulomb's law and electric field
     • Gauss's law and applications
   • Electrostatic Potential and Capacitance
     • Potential due to charge distributions
     • Capacitors and dielectrics
   • Conductors and Insulators
     • Behaviour of conductors in electric fields
2. 2

   Current Electricity and Magnetism

   3 topics

   • Current Electricity
     • Ohm's law and resistivity
     • Kirchhoff's laws and Wheatstone bridge
     • Cells, EMF and potentiometer
   • Moving Charges and Magnetism
     • Biot-Savart and Ampere's law
     • Force on conductors and moving coil galvanometer
   • Magnetism and Matter
     • Bar magnet and magnetic dipole
     • Para, dia and ferromagnetism
3. 3

   Electromagnetic Induction and AC

   3 topics

   • Electromagnetic Induction
     • Faraday's and Lenz's laws
     • Self and mutual inductance
   • Alternating Current
     • AC circuits and phasors
     • LCR resonance and power factor
     • Transformers
   • Electromagnetic Waves
     • Nature and spectrum of EM waves
4. 4

   Optics

   3 topics

   • Ray Optics
     • Reflection and refraction at curved surfaces
     • Lens maker's formula and combinations
     • Prism, dispersion and optical instruments
   • Wave Optics
     • Huygens' principle and interference
     • Young's double slit experiment
     • Diffraction and polarisation
   • Optical Phenomena
     • Total internal reflection and applications
5. 5

   Modern Physics and Electronics

   4 topics

   • Dual Nature of Matter and Radiation
     • Photoelectric effect and Einstein's equation
     • de Broglie wavelength
   • Atoms and Nuclei
     • Bohr's model and hydrogen spectrum
     • Radioactivity and nuclear reactions
     • Mass-energy relation and binding energy
   • Semiconductor Electronics
     • Intrinsic and extrinsic semiconductors
     • p-n junction diode and rectifiers
     • Transistors and logic gates
   • Communication Systems
     • Modulation and propagation of waves

Physics - Electromagnetism and Modern Physics flashcards for AP EAMCET / TS EAMCET

18 of 65 cards from the Physics - Electromagnetism and Modern Physics deck — real questions with worked answers.

1. State Coulomb's law and give the value of the constant k in SI units.

   The electrostatic force between two point charges is F = k·q1·q2/r², directed along the line joining them. k = 1/(4πε₀) ≈ 9 × 10⁹ N·m²/C², where ε₀ = 8.85 × 10⁻¹² C²/N·m².

2. Define electric field intensity and state its SI unit.

   Electric field intensity at a point is the force per unit positive test charge placed there: E = F/q. SI unit: N/C (or V/m). It is a vector quantity.

3. State Gauss's law in electrostatics.

   The total electric flux through any closed surface equals 1/ε₀ times the net charge enclosed: Φ = ∮E·dA = q_enclosed/ε₀.

4. Give the electric field due to an infinitely long uniformly charged straight wire of linear charge density λ.

   E = λ/(2πε₀r), directed radially outward, where r is the perpendicular distance from the wire. It varies as 1/r.

5. Give the electric field due to an infinite uniformly charged plane sheet of surface charge density σ.

   E = σ/(2ε₀), directed perpendicular to the sheet. It is independent of distance from the sheet.

6. Define electric dipole moment and give its direction.

   Electric dipole moment p = q·2a, where q is the magnitude of either charge and 2a is the separation. It is a vector directed from the negative charge to the positive charge. SI unit: C·m.

7. Give the torque on an electric dipole in a uniform electric field.

   τ = p × E, with magnitude τ = pE·sinθ, where θ is the angle between the dipole moment and the field. Torque is maximum (pE) at θ = 90° and zero at θ = 0° or 180°.

8. Define electrostatic potential at a point and state its SI unit.

   It is the work done per unit positive charge in bringing it from infinity to that point against the electric field: V = W/q. SI unit: volt (V) = J/C. It is a scalar quantity.

9. Give the potential due to a point charge q at distance r.

   V = kq/r = q/(4πε₀r). It is positive for positive charge, negative for negative charge, and zero at infinity.

10. What is the relation between electric field and electric potential?

    E = −dV/dr, i.e., the electric field is the negative gradient of potential. Field points in the direction of decreasing potential.

11. Define capacitance and give the formula for a parallel plate capacitor.

    Capacitance C = Q/V (charge stored per unit potential difference); SI unit farad (F). For a parallel plate capacitor C = ε₀A/d (with vacuum), where A is plate area and d is separation.

12. How does inserting a dielectric of constant K affect a parallel plate capacitor's capacitance?

    Capacitance increases by factor K: C = Kε₀A/d. The dielectric reduces the field between plates, allowing more charge to be stored at the same voltage.

13. Give the energy stored in a capacitor.

    U = ½CV² = ½QV = Q²/(2C), where C is capacitance, V the potential difference and Q the charge.

14. Give the equivalent capacitance for capacitors in series and in parallel.

    Series: 1/C_eq = 1/C₁ + 1/C₂ + ... (charge same). Parallel: C_eq = C₁ + C₂ + ... (voltage same).

15. Distinguish between conductors and insulators in terms of electrons and band structure.

    Conductors have free (delocalized) electrons and an overlapping/partially filled conduction band, so they conduct readily. Insulators have tightly bound electrons and a large forbidden energy gap (>3 eV), so almost no free charge carriers.

16. State Ohm's law and define resistance.

    At constant temperature, current through a conductor is proportional to the potential difference: V = IR. Resistance R = V/I is the opposition to current flow; SI unit ohm (Ω).

17. Give the formula for resistance in terms of resistivity and the temperature dependence of resistivity.

    R = ρL/A, where ρ is resistivity, L length, A cross-sectional area. For metals, resistivity increases with temperature: ρ_T = ρ₀(1 + αΔT), where α is the temperature coefficient of resistivity.

18. State Kirchhoff's two laws for electrical circuits.

    Junction (current) law: the algebraic sum of currents at a junction is zero (ΣI = 0), conserving charge. Loop (voltage) law: the algebraic sum of EMFs and potential drops around any closed loop is zero (ΣV = 0), conserving energy.

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