Kvl7Ed - KIRCHHOFF VOLTAGE LAW ONE OF THE FUNDAMENTAL...

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Unformatted text preview: KIRCHHOFF VOLTAGE LAW ONE OF THE FUNDAMENTAL CONSERVATION LAWS IN ELECTRICAL ENGINERING THIS IS A CONSERVATION OF ENERGY PRINCIPLE “ENERGY CANNOT BE CREATE NOR DESTROYED” KIRCHHOFF VOLTAGE LAW (KVL) VL IS A CONSERVATION OF ENERGY PRINCIPLE POSITIVE CHARGE GAINS ENERGY AS IT MOVES A POINT WITH HIGHER VOLTAGE AND RELEASES ERGY IF IT MOVES TO A POINT WITH LOWER LTAGE + A V B B V ) ( A B V V q W- = ∆ q- + ab V a b + q ab qV W = ∆ LOSES +- cd V c d + q cd qV W = ∆ GAINS + A V B B V q C V- + A B V- + B C V- + CA V AB qV W = ∆ BC qV W = ∆ CA qV W = ∆ A “THOUGHT EXPERIMENT” IF THE CHARGE COMES BACK TO THE SAME INITIAL POINT THE NET ENERGY GAIN MUST BE ZERO (Conservative network) OTHERWISE THE CHARGE COULD END UP WIT INFINITE ENERGY, OR SUPPLY AN INFINIT AMOUNT OF ENERGY ) ( = + + CD BC AB V V V q KVL: THE ALGEBRAIC SUM OF VOLTAGE DROPS AROUND ANY LOOP MUST BE ZERO A B +...
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This note was uploaded on 03/01/2012 for the course EEL 3041 taught by Professor Haroldklee during the Spring '12 term at University of Central Florida.

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Kvl7Ed - KIRCHHOFF VOLTAGE LAW ONE OF THE FUNDAMENTAL...

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