Two rods are of same material and having same length and area. If heat `DeltaQ` flows through them for 12 min when they are joined side by side. If now both the rods are joined in parallel, then the same amount of heat `DeltaQ` will flow in

Two identical rods of a metal are welded in series then conducts certain heat in 8 sec. If the rods are welded in parallel then the same amount of heat will flow in

Two rods of same length and material transfer given amount of heat in 12 s, when they are joined end to end. When they are joined parallelly then they will transfer same amount of heat in same conditions in

Two metal rods of same length and same material conduct a given amount of heat in 8 seconds, when they are joined end to end. But when they are joined in parallel, the time taken to conduct the same amount of heat under same condition is

Two rods of the same length and material transfer a given amount of heat in 12 seconds when they are joined end to end. But when they are joined lengthwise, they will transfer the same amount of heat, in the same conduction, in :

Two rods made of same material having same length and diameter are joined in series. The thermal power dissipated through then is 2W.If they are joined in parallel, the thermal power dissipated under the same conditions on the two ends of the rods, will be :

Two identical rods of a metal are welded as shown in figure-4.39(a). 20 cal of heat flows through them in 4 minute. If the rods are welded as shown in figure-4.39(b), then the same amount of heat will flow in: