Dielectric in an Electric Field Suppose a slab of dielectric material is placed in a uniform electric field set up between the parallel plates of a charged capacitor. The slab becomes electrically polarized. That is, its molecules become electric dipoles oriented in the direction of the field. The net effect is the appearance of negative Read more about Dielectric in an Electric Field[…]
West Bengal Joint Entrance Exam (WBJEE) 2019 Notification Released The West Bengal Joint Entrance Examinations Board (WBJEEB) was constituted in the year 1962 by the Government of West Bengal, in exercise of the powers conferred under article 162 of the Constitution of India pursuant to No. 828-Edn(T), dated 02.03.1962for the purpose of conducting Joint Entrance Read more about West Bengal Joint Entrance Exam (WBJEE) 2019 Notification Released[…]
Segments of Secants, Chord and Tangent Segments of Secants and Chord: Secants AB and CD intersect inside the circle in fig (a) and outside the circle in fig (b). From the figure, we have ∠DCB = ∠DAB and ∠ADC = ∠ABC Hence ΔADE ~ ΔCBE ∴ . AE x BE = CE x DE Segments Read more about Segments of Secants, Chord and Tangent[…]
Dielectric Constant In many capacitors there is an insulating material such as paper or plastic between the plates. Such material, called a dielectric, can be used to maintain a physical separation of the plates.There are non – conductors up to a certain value of field depending upon theirnature. If the field exceeds the limiting value, Read more about Dielectric Constant[…]
REVA University Engineering Entrance Test (REVA EET)2019 Notification Released REVA University is alive withthe confluence of different minds and energies. The exchange and interminglingof these vivacities characterizes life at REVA. The fellows of REVA, whetherthe vibrant faculty, the management and the pulsating student community, areall engaged to the brim in an intellectual tete a tete Read more about REVA University Engineering Entrance Test (REVA EET) 2019 Notification Released[…]
Aircraft Maintenance Engineering Common Entrance Test (AMECET) 2019 Notification Released AME CET 2019 is the national level Common AME Entrance Exam to offer admission in Aircraft Maintenance Engineering Course in some of the leading institutes approved by Directorate General of Civil Aviation, Ministry of Civil Aviation, Govt of India. The AME Entrance exam are of Read more about Aircraft Maintenance Engineering Common Entrance Test (AMECET) 2019 Notification Released[…]
Concurrency of Three Lines Three linesare said to be concurrent if they pass through a common point, i.e. they meetat a point. Thus, if three lines are concurrent the point of intersection of the two lines on the third line. Let the three concurrent lines be a₁x + b₁y + c₁ = 0 a₂x + Read more about Concurrency of Three Lines[…]
Energy stored in a Charged Capacitor Work has to be done to transfer charges onto a conductor, against the force of repulsion from the already existing charges on it. This work is stored as a potential energy of the electric field of the conductor. Suppose a conductor of capacity C is to be charged up Read more about Energy stored in a Charged Capacitor[…]
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