Question

derive expression for total resistance if the resostors are connected in parallells​

Answer 1

Answer:

R1×R2/R1+R2

Explanation:

if the connection is parallel total resistance is this

but if it is connected in series the total resistance

is R1+R2

Answer 2

Answer:

Equivalent resistance or total resistance=

1/R1 +1/R2+1/R3+1/R4...