Question

plz ans this que with proper explanation it's urgent​

Answer 1

Explanation:

a)

third combination is strictly parallel

Reff in parallel combination when all resistors have same resistence =R/n

Reff=1/4ohm

b)

first combination is strictly in series

Reff in series combination when all resistors gave same resistence=nR

Reff=4×1

Reff=4ohm

Answer 2

Explanation:this is the process of doing the problem my friend please check your answer