Home
Class 12
PHYSICS
The ratio of cross-sectional areas of tw...

The ratio of cross-sectional areas of two conducting wires made up of same material and having same length is 1 : 2. What will be the ratio of heat produced per second in the wires, when same current-is flowing in them

A

`1 : sqrt(2)`

B

`1 :1`

C

`1 :4`

D

`2 :1`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

For two wires of the same material and having the same length, the resistance of the thicker wire is less than that of the other wire ?

Two wires of same diameter of the same material having the length l and 2l If the force F is applied on each, the ratio of the work done in two wires will be

Two wires are made up of same material. Ratio of their masses is 1 : 2 and ratio of their lengths is 2 : 1 . So ratio of their resistances is.... .

The wires of two electric heaters are made up of same material and have same value. On combining them firstly in series after in parallel with a 220V A.C. source, the ratio of heat dissipiated on them will be:-

Two wires A and B are of the same material their lengths are in the ratio 1 : 2 and the diameter are in the ratio 2 : 1. If they are pulled by the same force, their increase in length will be in the ratio ........

The ratio of length of two wires of same mass arc made up of same material is 1 : 2 Therefore ratio of their resistance is ........

The same mass of copper is drawn into two wires 2 mm and 4mm thick. The two wires are connected in series and current is passed through them. The ratio of heat produced in the two wires is

The following four wires are made of the same material which of these will have the largest extension when the same tension is applied

Two wires of the same material have lengths in the ratio 1:2 and their radii are in the ratio 1:sqrt(2) If they are stretched by applying equal forces, the increase in their lengths will be in the ratio

Masses of 3 wires of same metal are in the ratio 1 : 2 : 3 and their lengths are in the ratio 3 : 2 : 1. The electrical resistances are in ratio