Karnataka II PUC Physics (KSEAB) study guide
Karnataka II PUC Physics (KSEAB) · Work through your exam, one topic at a time.
The Karnataka II PUC Physics examination is the second-year pre-university board paper set by the Karnataka School Examination and Assessment Board (KSEAB). It is taken by students who have completed the two-year pre-university science stream and who intend to use the subject score for admission to engineering, pure science, pharmacy, or other professional courses. The Karnataka II PUC Physics (KSEAB) study guide has 13 sections and about 4,195 words.
01Electric Charges and Fields
Electric Charges and Fields covers Coulomb's law, superposition, electric field and field lines, the electric dipole, and Gauss's law with its standard applications. Questions are usually one-mark definitions, two-mark reasoning and three- or five-mark numericals on dipole fields or Gauss-law flux.
328 words, about 2 min02Electrostatic Potential and Capacitance
Electrostatic Potential and Capacitance tests potential as a scalar, the relation between E and V, equipotentials, capacitance of parallel-plate and spherical conductors, dielectrics, combinations of capacitors and stored energy. V = W/q₀; potential due to a point charge V = kq/r, with sign.
330 words, about 2 min03Current Electricity
Current Electricity covers drift velocity, Ohm's law and resistivity, temperature dependence, emf and internal resistance, Kirchhoff's rules, the Wheatstone bridge and the potentiometer. Numericals on drift speed, terminal voltage and bridge balance are common.
294 words, about 1 min04Moving Charges and Magnetism
Moving Charges and Magnetism tests the Biot–Savart law, field of a loop and solenoid, force on moving charges and current-carrying conductors, circular motion in a magnetic field, torque on a loop and the moving-coil galvanometer. Biot–Savart: dB = (μ₀/4π)I dl sin θ/r²; μ₀/4π = 10⁻⁷ T m A⁻¹.
314 words, about 2 min05Magnetism and Matter
Magnetism and Matter covers the bar magnet as a magnetic dipole, field on axial and equatorial lines, Gauss's law for magnetism, earth's magnetism, magnetic properties of materials, hysteresis and the choice of magnetic materials. Magnetic moment m = NIA, direction from S to N inside the magnet.
325 words, about 2 min06Electromagnetic Induction and Alternating Current
Electromagnetic Induction and Alternating Current tests Faraday's law, Lenz's law, motional emf, self- and mutual inductance, eddy currents, rms values, AC through R, L and C, series LCR resonance, power factor and the transformer. Faraday: ε = −dΦ/dt; for N turns ε = −N dΦ/dt.
345 words, about 2 min07Electromagnetic Waves
Electromagnetic Waves tests the displacement current, Maxwell's idea, the transverse nature of EM waves, the relation E₀/B₀ = c, the EM spectrum and its uses, and simple intensity calculations. A changing electric field produces a displacement current I d = ε₀ dΦ E/dt, which produces a magnetic field; this completes the symmetry with Faraday's law.
308 words, about 2 min08Ray Optics and Optical Instruments
Ray Optics and Optical Instruments tests reflection at spherical mirrors, refraction, total internal reflection, the lens maker's formula, thin lenses, power, prisms, dispersion and the working of microscopes and telescopes. Mirror formula 1/v + 1/u = 1/f, with f = R/2; magnification m = −v/u.
334 words, about 2 min09Wave Optics
Wave Optics tests Huygens' principle, interference in Young's double-slit experiment, fringe width, diffraction at a single slit, polarisation and Brewster's law. Huygens: every point on a wavefront is a secondary source; the envelope gives the new wavefront.
292 words, about 1 min10Dual Nature of Radiation and Matter
Dual Nature of Radiation and Matter tests the photon picture, the photoelectric effect, Einstein's equation, stopping potential and de Broglie wavelength. Photon energy E = hν = hc/λ; momentum p = h/λ.
289 words, about 1 min11Atoms and Nuclei
Atoms and Nuclei tests the Rutherford model, Bohr's postulates, hydrogen energy levels and spectra, nuclear size, mass defect and binding energy, radioactivity and its decay laws, and fission and fusion. Bohr: electrons occupy stationary orbits with mvr = nh/2π; radiation occurs only on transitions, hν = E₂ − E₁.
317 words, about 2 min12Semiconductor Electronics: Materials, Devices and Simple Circuits
Semiconductor Electronics tests energy bands, intrinsic and extrinsic conduction, the p–n junction, diode characteristics, rectifiers, Zener regulation, the transistor as an amplifier or switch, current gains and logic gates. Bands: valence band, conduction band, forbidden gap E g.
360 words, about 2 min13Practical Physics and Experimental Skills
Practical Physics checks the instruments and experiments in the KSEAB practical list: vernier calipers, screw gauge, simple pendulum, metre bridge, potentiometer, Ohm's law, convex lens, prism and the figure of merit of a galvanometer. Questions ask for least count, zero error, formula, precautions and error analysis.
359 words, about 2 min