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WHAT ARE THE FACTORS AFFECTING THE PATH OF A PROJECTILE?

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January 23, 2022

Location: 8M6JM7WM+8V

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What is motional emf? Factors on which it depends & expression for motional emf

February 14, 2022

MOTIONAL EMF : The emf actuated across the closures of a conductor because of its movement in a magnetic field is called motional emf. PFACTORS ON WHICH THE MOTIONAL EMF DEPENDS: 1. Uniform magnetic field (B) 2. Velocity of the conductor moving in the U-moulded leading rails.(v) 3. Length of the conductor. (L) DERIVE AN EXPRESSION FOR THE MOTIONAL EMF INDUCED IN A CONDUCTOR DESCRIPTION: Conductor PQ of length L is allowed to continue on a U-moulded leading rails. (Here the slidable conductor PQ is moved outwards with a speed v).When the conductor moved outwards the space of the rectangular circle increments and consequently the attractive transition connected with the shut circle increments. Thus,the magnetic flux linked with the closed-loop increases. An emf is set up across the conductor PQ due to which an initiated current stream in the anticlockwis e course (as displayed in the image).According to Faraday's law of electromagnetic induction the emf incited is - BLv MAGNETIC

HOW INTERNAL RESISTANCE OF A LECHLANCHE CELL IS CALCULATED USING A POTENTIOMETER ?

February 13, 2022

INTERNAL RESISTANCE OF A LECHLANCHE CELL : CIRCUIT DIAGRAM: AB -Potentiometer Bt -Battery Eli K 1 K 1 -Plug key in the primary circuit K 2 -Plug key in the secondary circuit Rh -Rheostat L (or) E -Lechlanche cell H.R -High Resistance G - Galvanometer R -Resistance box J 1 , J 2 -Pencil Jockey positions EXPERIMENTAL SET UP: SIMPLE CIRCUIT DIAGRAM : PROCEDURE: The circuit associations and the test set up are made as displayed previously. In the open circuit,when resistance is excluded (not included), the emf of the cell is deterimned by taking note of the balncing length.That is l 1 In the shut(closed) circuit, when the resistance is incorporated the balncing length is to be noted. That is l 2 The trial is rehashed for various values of R and the readings are organized. Utilizing the equation the internal resistance of the given cell can be determined. TABULAR COLUMN: CALCULA

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