Physics

Problem

Four resistors are connected between terminals

P

and

Q

as follows. Resistors

R_1 = 1\,\Omega

and

R_2 = 2\,\Omega

are connected in parallel. This parallel combination is connected in series with resistor

R_3 = 3\,\Omega

. The resulting series combination is then connected in parallel with resistor

R_4 = 6\,\Omega

between

P

and

Q

. What is the equivalent resistance

R_{\text{eq}}

between

P

and

Q

? a)

3\,\Omega

\dfrac{11}{3}\,\Omega

\dfrac{66}{29}\,\Omega

\dfrac{18}{7}\,\Omega