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Q. How is a galvanometer converted into (a) an ammeter and (b) a voltmeter?
A galvanometer is transformed into an ammeter by connecting a low resistance in parallel with it. The low resistance associated in parallel with the galvanometer is called shunt resistance. A galvanometer is able be converted into a voltmeter by connecting a high resistance in series with it.
The velocity of a motor boat with respect to Still Water is 7 m/s and the velocity of water in river is 3 m/s. When the boat starts moving upstream, a float was dropped from it.
Q. State any three laws of photo electric emission? (i) For a specified photo sensitive material there is a minimum frequency called the threshold frequency below which emissio
Coulomb's law (C. de Coulomb) The primary law for electrostatics is analogues to Newton's law of universal gravitation. This states that the force among two point charges is p
Curie's law (P. Curie) The susceptibility, khi, of an isotropic paramagnetic substance is associated to its thermodynamic temperature T through the equation khi = C/T
Explain the Ray Diagrams for Mirrors? To figure out the position and size of an image reflected by a curved mirror, you can draw a scaled diagram of the mirror as follows: along
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What do you mean by the magnetic moment of a semi circular magnet of radius ‘r' and pole strength ‘m'
what is the effect of torque and equilibrium on taps, doors,handle bars and bicycles??
Work out the voltage for the following arrangement of 1.5V cells: ( Solve problems with cells in series, parallel and series-parallel)
in need of projects on '' PHYSICS OF THE BRAIN''. Thanks
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