Question

Answer of 30.....pls

Answer 1

1/R=5×1/25
R = 5 ohm.

Answer 2

Let equivalent resistance be R

5 resistances of 25 Ω are connected in parallel ..

When resistances are connected in parallel , the reciprocal of equivalent resistance is the sum of the reciprocals of the resistances .....

Solving the given question :

1 / R = 1 / 25 Ω  + 1 / 25 Ω  + 1 / 25 Ω  + 1 / 25 Ω  + 1 / 25 Ω

==> 1 / R = 1 / 25 Ω  × 5

==> 1 / R = 1 / 5 Ω

==> R = 5 Ω

Answer :-

OPTION B