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Q. Write the applications of a capacitor.
Applications of capacitors. (i) They are utilized in the ignition system of automobile engines to eliminate sparking. (ii) They are utilized to reduce voltage fluctuations in power supplies and to increase the efficiency of power transmission. (iii) Capacitors are utilized to generate electromagnetic oscillations and in tuning the radio circuits.
Q. What is electrostatic shielding? i) It is the method of isolating a certain region of space from external field. ii) It is basis on the fact that electric field inside a
how the direction of friction is obtained?
why is the resultant of 3 non-coplanar vector always non-zero?
Is there any other proof that light is an electromagnetic wave other than its speed has the same value as the inverse square root of the permittivity and permeability constants of
illustrate the parts and function of motor
Melting point: 525 0 C. It has small band gap and very high mobility around 70,000Cm 2 /V-Sec. It has much easier to prepare in single crystal from the Gallium arsenide. It is
Q. Compute the resistance of the filament of a 100W, 220 V electric bulbs. Power P = V 2 /R Resistance R = V 2 /P = (220 X 220)/ 100 = 484 ohm.
What do you mean by an optical fiber? State its principle. Can we minimize chromatic and spherical aberrations simultaneously? If so, how?
How does the (i) pole strength and (ii) magnetic moment of each part of a bar magnet change if it is cut into two equivalent pieces transverse to its length?
A standing wave is formed on a tightly stretched string. The distance between a node and an antinode is: w) 1/8 wavelength x) 1/4 wavelength y) 1/2 wavelength
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