Karnataka II PUC Physics (KSEAB) case studies
Karnataka II PUC Physics (KSEAB) · Put your knowledge to work in context.
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) case studies are 5 cases and about 2,549 words.
1Dielectric Insertion with the Battery Still Connected
In a II PUC physics laboratory, a student charges a parallel-plate capacitor with plate area 0.020 m² and plate separation 1.0 mm while it remains connected to a 200 V battery. With air between the plates, the electrometer reads 200 V and the student records the charge.
449 words, about 2 min2Parallel Lamps and the Internal Resistance of a Battery
A student is testing a 12 V battery whose internal resistance is 0.80 Ω. First, the student connects a lamp of resistance 6.0 Ω across the battery and observes a moderately bright glow.
516 words, about 3 min3Converting a Galvanometer into an Ammeter and a Voltmeter
In a school laboratory, a moving-coil galvanometer has a coil resistance of 40 Ω and gives full-scale deflection at 2.0 mA. A student is asked to convert this galvanometer into (i) a 0–5 A ammeter and (ii) a 0–10 V voltmeter, using only suitable resistors and the same galvanometer.
536 words, about 3 min4Series LCR Resonance and Voltage Magnification
A student assembles a series LCR circuit with R = 50 Ω, L = 2.0 H, and C = 10 μF connected to a 220 V, 50 Hz AC source. Expecting the current to be V/R = 4.4 A, the student is surprised when the milliammeter in the circuit reads only about 0.70 A.
525 words, about 3 min5Double-Slit Fringes in Water and with a Mica Sheet
In a double-slit experiment, a student uses sodium light of wavelength 589 nm, slit separation 0.40 mm, and screen distance 1.5 m. The student measures the fringe width in air as 2.2 mm.
523 words, about 3 min