Express the resistors in parallel as a single equivalent resistor. What is the v

Question

Express the resistors in parallel as a single equivalent resistor. What is the value of this single resistor?

Combine this equivalent resistor with R1 to get the total equivalent resistance of the circuit. What is the value of this resistor?

______ A    

Analyze the circuit in the figure ( R1 = R2 = R3 = 1258 ohm). Express the resistors in parallel as a single equivalent resistor. What is the value of this single resistor? Combine this equivalent resistor with R1 to get the total equivalent resistance of the circuit. What is the value of this resistor? The circuit now is reduced to a battery in series with a single equivalent resistance. Use your result from the previous question to find the current through the battery ( 1 = 10.5 V)and resistor R1.

Explanation / Answer

a)

1/R23 =1/R2 +1/R3

R23 =R2*R3/(R2+R3)

R23 =1258*1258/(1258+1258)

R23=629 ohms

b)

Req =R1+R23 =1258+629

Req =1887 ohms

c)

I=E/Req =10.5/1887

I=0.00556 A

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