Question

When three identical resistor are connected in parallel their total resistance is 4ohm .when connected in series ,their total resistance shall be​

Answer 1

Solution:

1/R=1/r+1/r+1/r=3/r(3 resistors are identical)

R=r/3

So,

r/3=4ohm

r=12ohm

In series,

r+r+r=3r(3 are identical resistors)

=3×12

=36ohm