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Alternating Current: (AC)
Such a current can be obtained if a resistor is linked in series with a source of alternating voltage. This current alters its direction so many times in a second.
(i) A disk shaped flywheel of uniform density _, outer radius R and thickness w. rotates with angular velocity _, obtain an expression for the moment of inertia 2 vol I =_ρ r dV
Determine the ratio of the frequencies of harmonics in an air column of same length in a) a closed pipe and b) an open pipe
The power factor of an a.c. circuit is 0.5. What will be the phase difference among voltage and current in this circuit?
why electron move in orbit
Can radiations like gamma rays and x-rays be made prevented to enter a place by a magnetic field? Ans) Rutherford noted that gamma rays were not deflected (or at least, not easi
Car and Truck in Head on Collision Inelastic Collision : Collisions among objects are governed through laws of energy and momentum. Although a collision occurs inside an isol
Mica is a (A) Dielectric material. (B) Insulating material. (C) Magnetic material. (D) Both insulating and dielectric material. Ans: Mica is a both insulating and
please explain newtons first law of motion
what was the main idea
Static Electricity: 1. There are two types of charges positive and negative. 2. Like charges repel and unlike charges attract each other. 3. Charged bodies make electric
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