(Continued)

The current through R1 is the same as that

through R2 (branch current); therefore, IR1

is equal to IA,

IR1 = IR2 = IA

IA = 10 a

IR1 = IR2 = 10 a

a

Notice that the additional branches placed

in parallel with branch A do not affect the

currant through branch A.

The voltage drop across R1 is

ER1 = IR1 X R1

= 10 a x 15

ER1 = 150 V

It is imperative that the current through

the particular resistor under consideration

be used in determining the voltage across

the resistor. Total circuit current exceeds

any resistor current and cannot be used in

finding a particular resistor voltage.

The method described above may be used to

find the current through and the voltage

across any particular resistor in a parallel

circuit.