Electrical Engineering ⇒ Topic : SERIES COMBINATION OF RESISTORS

Sonali
 
SERIES COMBINATION OF RESISTORS When a number of resistors are connected in series, this series combination of resistors can be replaced by an equivalent resistor. In Figure 2.4, three resistors are connected in series. A voltage source of V volt is applied between the ends of the series combination, i.e., beginning of the first and the end of the last. Let the current I flow in the circuit. From Figure (a), we have
figure (a) .......... (1) Let all the resistors connected in series between A and D be replaced by a single resistor having resistance of R Ω, such that the same current I flows through R. It can be written as: ........... (2) From Eqs. (1) and (2), we get If n resistors R_{1}, R_{2}, ..........R_{n} are connected in series, the above equation can be written as:
In series combination
 
 
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