Four resistors are labelled A, B, C

PHYSICS · Single correct · CBSE · Physics · Electricity · Electricity

Problem

Four

12\,\Omega

resistors are labelled A, B, C, and D. Which of the following configurations results in an equivalent resistance of

20\,\Omega

? (a)

A

and

B

in series; that pair connected in parallel with the series combination of

C

and

D

(b)

A

in series with the parallel combination of

B

C

, and

D

(c)

A

and

B

in series; that pair connected in parallel with

C

; the resulting combination connected in series with

D

(d)

A

B

, and

C

all in series, connected in parallel with

D