Two identical rods of a metal are welded in series then 20 cal of heat flows through them in 4 minute. If the rods are welded in parallel then the same amount of heat will flow in

Two identical rods of a metal are welded in series then 20 cal of heat

1.	Two identical rods of a metal are welded in series then 20 cal of heat flows through them in 4 minute. If the rods are welded in parallel then the same amount of heat will flow in
Answer» 1 minute 2 minute 4 minute 16 minute Answer :A