Laser Light is Highly Coherent
Wave trains for laser light may be several hundred kilometers long. Interference fringes can be set up by combining two beams that have followed separate paths whose lengths differ by as much as this amount. The corresponding coherence length for light from a tungsten filament lamp or a ..
Vectorless Gene Transfer
Electroporation: Temporary holes are formed in the plasma membrane of the host cell by applying a high voltage. These pores permit entry of foreign DN..
Overloading
If too many electrical appliances of high power rating (like electric iron, water heater etc) are switched on at the same time, they draw an extremely large current from the circuit. This condition is called overloading and it can cause overheating of the wiring and lead to a fire. It ca..
Zener Diode
. So the minority carriers namely electrons in 'P' type and holes in n-type get accelerated and they attain very high kinetic energy. These highly energetic charge carriers collide with valence electrons breaking their bond creating hole - electron pair, This is called as 'avala..
Domestic Electric Circuit
Electric power is usually generated at places which are far from the places where it is consumed. Distribution of Electricity from Grid The power is transmitted over long distances at high voltage to minimize the loss of energy during transmission. For a given electric power, th..
Electric power is usually generated at places which are far from the places where it is consumed. Distribution of Electricity from Grid The power is transmitted over long distances at high voltage to minimize the loss of energy during transmission. For a given electric power, th..Half wave rectifier
. The output is taken across the resistance R. During the positive half cycle on account of induction, S 1 is +ve and S 2 is -ve. It forward biases the junction diode and hence a current flows in direction shown. We therefore get output across load resistance. During the negative half cycle S 1 is ..
Numerical 07
Two identical cells of EMF 1.5 V each joined in parallel provide supply to an external circuit consisting of two resistors of 17 W each joined in parallel. A very high resistance voltmeter reads the terminal voltage of the cell to be 1.4 V. What is the internal resistance..
Current Electricity Problems - Numerical 07
07. - Two identical cells of EMF 1.5 V each joined in parallel provide supply to an external circuit consisting of two resistors of 17 W each joined in parallel. A very high resistance voltmeter reads the terminal voltage of the cell to be 1.4 V. What is the internal resistance ..
Cathode Rays
When the pressure in the discharge tube is less than 10 - 4 mm of Hg, the discharge tube starts showing fluorescence. When this fluorescence was investigated, it was found that the fluorescence consisted of beams of negatively charged electrons. These electrons emanate normally from the cathode. As..
Cathode Rays
Cathode Rays - When the pressure in the discharge tube is less than 10 - 4 mm of Hg, the discharge tube starts showing fluorescence. When this fluorescence was investigated, it was found that the fluorescence consisted of beams of negatively charged electrons. These electrons emanate normally from ..
Result
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