# Question #86804

##### 1 Answer

#### Answer:

(a)

(b)

#### Explanation:

(a) We know that effective resistance of two resistors connected in series is sum of individual resistances

and for two resistors connected in parallel is given by the expression

Keeping above in mind the effective resistance of the circuit is

Given is

Inserting in (1) above and making all in terms of

Assuming that internal resistance of the voltage source is small and is ignored in the calculations

Now

Also

And

(b) As seen from the circuit, both the Resistor

.-.-.-.-.-.-.-.-.-.-.-.-.--.

Text **(11.9) [T/I]** in the question is not relevant to the circuit.