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Amplifier is a functioning by which the amplitude of variation of ac signal voltage / current/ power can be enhanced
(i) Principle and circuit diagram: The amplifying action of the triode is based on the fact that small change in grid voltage produces the similar change in the grid voltage as because of a large change in the plate voltage. A circuit for triode as an amplifier
(ii) Working: First of all the mutual characteristic curves of a triode to be used as an amplifier is plotted and the grid potential - Corresponding to the mid-point of straight portion of characteristic curve is noted.
Voltmeter: An electromechanical instrument which is used to calculate potential difference among two points is known as voltmeter. Voltmeter is a modified form of a galvanom
prove that equatorial line of dipole acts as equipotential surface
What is the exact distinction between Diffraction and Interference?
Explain about the Heat Extraction? a) A body of mass M has a temperature-independent precise heat C. If the body is heated reversibly from a temperature T i to a temperature
Electric field lines In good metallic conductors: In good metallic conductors: (i) Static electric fields are not there (zero inside a conductor) (ii) Charges reside
1. Fill a sink or bath tub with water. 2. Practice tapping the cork on the surface of the water (about 3 _times per second works well) to create evenly spaced waves. 3. Tappi
what is coplaner vactors
Reverse Bias: When P-types material of a semi conductor diode is linked a negative potential and the n-type material is linked at positive potential of a voltage source, the di
Explain the Merits of Vacuum Diode over Semiconductor Diode (i) Vacuum Diodes can withstand high reverse voltages (ii) Vacuum Diodes can operate at fairly high temperature
energy mass relation
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