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Hertz; Hz (after H. Hertz, 1857-1894)
The derived SI unit of frequency, explained as a frequency of 1 cycle per s; therefore it has units of s-1.
A conductor moves with a velocity of 20m/s at an angle of (a) 90 ? (b) 45 ? (c) 30 ? , to a magnetic field produced among two square-faced poles of side length 2.5cm. If the
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4 A positive charge or
A Surfer sits on his board waiting as waves go by to catch a ride back to shore. Assuming the waves can be modelled as a sine wave given by h (x,t) = 1.75 sin (0.03 Πx - 0.15 Πt) [
Self inductance: When current through a coil changes, the changing flux induces an emf that opposes the current flow. This emf is the result of self inductance and is called '
Core type Transformers: In this type of transformer the windings enclose the core (fig. given below). Both the windings are divided and half of every winding is placed on eac
Stefan-Boltzmann law (Stefan, L. Boltzmann): The radiated power P (it is rate of emission of electromagnetic energy) of hot body is proportional to the radiating surface area,
Write down the expression for the equivalent focal length of two thin lenses separated by a distance and illustrate the terms.
Luminous flux and LASER: The luminous flux of a light source is measured in the units of LUMEN (lm). Lumen (lm) is the amount of light emitted per second by uniform (point) so
can electrons from an electron gun produce electricity
An undersea explosion occurs. If the sea water has density 1.03 x 10 3 kg/m3 and Bulk Modulus of 2.41x10 9 Nm -2 ; a) Determine the velocity of sound in sea water b) If
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