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The voltage drops across two components when connected in series across an a.c. supply are v1 =150sin 314.2t and v2 =90sin(314.2t -∏/5) volts respectively.
Determine (a) the voltage of the supply, in rigonometric form,
(b) the r.m.s. value of the supply voltage, and
(c) the frequency of the supply.
The loudness of sound depends on: Amplitude of vibration. Area of vibrating body. Distance from the sounding body. Density of the medium.
The water level in a tank is 20 m above the ground. A hose is connected to the bottom of the tank, and the nozzle at the end of the hose is pointed straight up. The tank is at sea
true or false. All radioactive elements have been synthesized
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Battery powered vehicles Used DC series motors are the first choice. Recently AC motors with frequency changers are being considered.
A figure separated into squares, each of size 1 mm 2 is being viewed at a distance of 9cm by a magnifying lens of local length 10cm, held close to the eye. (i) Illustrate a ray
define biased clipper?
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