Total resistance in circuit

Question

Answer 1

Step 1:

Observe the circuit.

Node between the resistors and makes the connection parallel and node between the resistors and makes the connection parallel.

Hence the resultant resistance of  and is in parallel with .

Thus, the three resistors are in parallel.

Redraw the circuit.

Resultant resistance of parallel resistors formula: .

Substitute in the above expression.

Equivalent resistance is .

Solution :

Equivalent resistance is .