Consider the circuit shown in the figure below. (Assume R1 = 11.5 ?, R2 = 1.95 ?

Question

Consider the circuit shown in the figure below. (Assume R1 = 11.5 ?, R2 = 1.95 ?, and V = 6.90 V.)

(a) Calculate the equivalent resistance of the R1 and 5.00-? resistors connected in parallel.
______?

(b) Using the result of part (a), calculate the combined resistance of the R1, 5.00-? and 4.00-? resistors.
_______ ?

(c) Calculate the equivalent resistance of the combined resistance found in part (b) and the parallel 3.00-? resistor.
_______?

(d) Combine the equivalent resistance found in part (c) with the R2 resistor.
_______ ?

(e) Calculate the total current in the circuit.
_______ A

(f) What is the voltage drop across the R2 resistor?
______V

(g) Subtracting the result of part (f) from the battery voltage, find the voltage across the 3.00-? resistor.
_______V

(h) Calculate the current in the 3.00-? resistor.
______ A

Explanation / Answer

(a)

R1 and 5 ohm are connected in parallel so net resistance is

1/R = 1/R1 + 1/5 = 1/11.5 + 1/5

R =3.48 ohm

(b)

R = 3.48 + 4 = 7.48 ohm

(c)

1/R = 1/7.48 + 1/3

R = 2.14 ohm

(d)

R = 2.14 + 1.95 = 4.09 ohm

As per guide lines I did first 4 parts of the problem please post reamining parts next time

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