Voltage Divider Rule ( Electrical tearms )

Since in a series circuit, same current flows through each of the given resistors, voltage drop varies directly with its resistance. In Figure is shown a 24- V battery connected across a series combination of three resistors.

Total resistance R = R 1 + R2 + R3 = 12 Ohm

According to Voltage Divider Rule, various voltage drops are :

V1 = VR1/R = (24x2) / 12 = 4 v  ;  V2 = 8 V  ; V3 = 12 V

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