Voltage Divider Assignment Help

Assignment Help: >> Introduction of Electric Circuit - Voltage Divider

Voltage Divider

Very frequently, it is helpful to think of a series circuit as the voltage divider. The fundamental idea behind the voltage divider is to allocate a part of the total voltage to each resistor. In Figure (a) shown below, assume that the source voltage is E. By the circuit configuration illustrated one can divide off any voltage preferred (Vout), less than the supply voltage out E, by adjusting R1, R2 and R3.

                             737_Voltage Divider.png

                                                             Figure (a): Voltage divider

From the figure (a) above the output of the voltage divider Vout is calculated by the relation shown below,

 

                                          1965_Voltage Divider  1.png

 

The above equation points out that the voltage across any resistor Ri (Ri I = 1, 2,….n ) in a series circuit is equivalent to the applied voltage ( E ) across the circuit multiplied by a factor

 

                                                                         1226_Voltage Divider 2.png

It must be noted that this expression is only valid when the same current I flows via all the resistors. When a load resistor is linked to the voltage divider (as shown in figure (b)), one can easily alter the expression above by simply combining RL and Rn in parallel to find a new 1065_Voltage Divider 3.pngand substituting Rn by 1065_Voltage Divider 3.png

                          1693_Voltage Divider 4.png

                                           Figure: Voltage divider with load

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd