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Fizeau method (A. Fizeau, 1851): One of the first really relativistic experiments intended to calculate the speed of light. Light is flow through a spinning cogwheel driven th
ROTOR: (i) squirrel -cage rotor (ii) phase-wound or wound-rotor 90% of Induction Motor are squirrel cage type due to this type of rotor has a easiest and the most rugged
What is the work done to take a particle of mass m from surface of the earth to a height equal to 2R (R=radius of earth )? Ans) Initial PE= - GMm/R Final PE = - GMm/3R
What is splicing? Splicing: Two optical fibers utilized for communication are joined with a process termed as Splicing. This must be done very carefully that is the splicing
how to prepare a working model on electromagnetic induction?
What is Modern view Modern view : It objects tend to remain in their initial state; force is needed to change motion. Resistance to alters in motion is known as inertia.
A guitar string produces 4 beats/second when sounded with a250Hz tuning fork and 9 beats/second when sounded with a 255 Hz tuning fork. What is the vibration frequency?
When the two simple harmonic motions have dissimilar amplitudes and also vary in phase but they have the similar periodic time : The resultant curve may be obtained graphically
what is the importance of si unit
Define Electric Circuits So far we have only looked at electric charges sitting still and static discharges (like a shock or lightning). When we count on the charges moving thr
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