Question

please answer it................... ​

Answer 1

in the above series the connection is in parallel so

1/R+1R= R+R/R= 2R/R=R

similarly,

1/R+1R= R+R/R= 2R/R=R

1/R+1R= R+R/R= 2R/R=R

1/R+1R= R+R/R= 2R/R=R

R+R+R+R=4R

Answer 2

Answer is: Option D (4R)