Assam Higher Secondary Physics case studies
Assam Higher Secondary Physics · Put your knowledge to work in context.
The Assam Higher Secondary Physics examination is the Physics paper of the H.S. Final Examination, the Class XII school-leaving examination for higher secondary students in Assam. The Assam Higher Secondary Physics case studies are 5 cases and about 2,917 words.
1Disconnected Capacitor with a Partly Filled Dielectric
In a school laboratory, a parallel-plate capacitor is made from two metal plates of area 2.0 × 10−2 m2 separated by 4.0 mm. With the plates connected to a 12 V battery, a student measures the charge on the plates as 5.3 × 10−10 C.
655 words, about 3 min2Internal Resistance with a Non-Ideal Ammeter
A student is asked to determine the internal resistance of a dry cell marked 1.50 V using a voltmeter, an ammeter, and a 10.0 Ω resistor. The ammeter has a resistance of 0.50 Ω and the digital voltmeter has a resistance of 10 MΩ.
534 words, about 3 min3Solenoid Field: Centre Versus End
A student winds 40 turns of insulated copper wire in a single uniform layer along a 25 cm length of cardboard tube of diameter 3.0 cm, then connects the coil to a 2.0 A dc supply. At the centre, a Hall probe reads 3.8 × 10−4 T; at one end the same probe reads 2.0 × 10−4 T.
600 words, about 3 min4Transformer Efficiency and a Battery Supply
A student builds a transformer with 600 turns on the primary and 60 turns on the secondary. The primary is connected to a 240 V, 50 Hz supply.
554 words, about 3 min5Lens Focal Length in Water
A student has a biconvex lens made of crown glass of refractive index 1.52; both surfaces have radius of curvature 20 cm. In air, using a distant window as the object, he measures a focal length of 19.5 cm.
574 words, about 3 min