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The amplified video signals are amplitude modulated using a suitable r.f. carrier wave in a transmitter called ‘AM' picture transmitter. Similarly, the amplified audio signals are frequency modulated using another r.f. carrier wave of higher frequency in a transmitter called ‘FM' sound transmitter.
These video and audio modulated carrier waves together are fed to the transmitting antenna on a tower. The transmitting antenna broadcasts the combined signal radiation into space.
Calculate the overall heat-loss coefficient for a solar collector with a single glass cover having the following specifications (neglect edge effects): Spacing between the plate
If the temperature in a room is 84 degrees at the floor what will it be at a 30 foot ceiling
crude oil distillaiton
Q. A capacitor of capacitance 2 μF is in an ac circuit of frequency 1000 Hz. If the rms value of the applied emf is 10 V, find the effective current flowing through the circuit.
In physics, a radian per second is a unit of: a) Angular displacement b) Angular velocity c) Angular acceleration d) Angular momentum. Ans: A radian per
Principle Ray III . Preliminary from the head of the arrow that the object is ray III travels directly toward the focal point on the other side of the lens. However at the plane of
In an electric field rate of change of potential with distance is called as potential gradient. It is a vector quantity and its direction is differing to that of electric field. Po
COMPARATOR EQUATION USED TO DETERMINE THE CONCENTRATION OF ELEMENTS
Which word in the sentence is the participle? Around the year 1500, Leonardo da Vinci, a great inventor and painter, designed plans for a flying machine, but it was never built.
A block of mass m is tied to a cord of length L that is pivoted at the center of a frictionless table. A second block of mass m is tied to the ?rst block also on a cord of length L
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