Two rods of the same length and diameter...

Two rods of the same length and diameter, having thermal conductivities `K_(1)` and `K_(2)`, are joined in parallel. The equivalent thermal conductivity to the combination k is

`(K_1K_2)/(K_1 + K_2)`

`K_1 + K_2`

`(K_1 + K_2)/(2)`

`sqrt(K_1K_2)`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

NTA NEET TEST 102
NTA MOCK TESTS|Exercise PHYSICS|45 Videos
NTA NEET TEST 111
NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

Two rods of the same length and diameter, having thermal conductivities K_(1) and K_(2) , are joined in parallel. The equivalent thermal conductivity to the combinationk is

Two rods of equal length and diameter but of thermal conductivities 2 and 3 unites respectively are joined in parallel. The thermal conductivity of the combination is:

A slab consists of two layers of different materials of the same thickness and having thermal conductivities K_(1) and K_(2) . The equivalent thermal conductivity of the slab is

Two identical metal wires of thermal conductivities K_(1) and K_(2) respectively are connected in series. The effective thermal conductivity of the combination is :

A slab consists of two parallel layers of two different materials of same thickness having thermal conductivities K_(1) and K_(2) . The equivalent conductivity of the combination is

Two rods of equal length and diameter have thermal conductivite 3 and 4 units respectively. If they are joined in series, the thermal conductivity of the combination in the given units would be

Two plates ofthe same area and the same thickness having thermal conductivities k_(1) and k_(2) are placed one on top of the other. Show that the thermal conductivity of the composite plate for conduction of heat is given by k=(2k_(1)k_(2))/((k_(1)+k_(2))

Three rods of same dimension are joined in series having thermal conductivity k_1 , k_2 and k_3 . The equivalent thermal conductivity is

NTA MOCK TESTS-NTA NEET TEST 103-PHYSICS

A man weighs 'W' on the surface of the earth and his weight at a heigh...
Text Solution
|
The time period of a satellite of earth is 5 hours. If the separation ...
Text Solution
|
Two rods of the same length and diameter, having thermal conductivitie...
Text Solution
|
Among the following the correct statement is
Text Solution
|
An ideal monoatomic gas is taken round the cycle ABCDA as shown in the...
Text Solution
|
Which of the following particles will describe the smallest circle wh...
Text Solution
|
The length of a magnet is large compared to its width and breadth. The...
Text Solution
|
Which of the following options is correct for the object having a stra...
Text Solution
|
The equation of motion of a projectile is y = 12 x - (3)/(4) x^2. The ...
Text Solution
|
A block of mass 2 kg rests on an inclined plane which makes an angle o...
Text Solution
|
A bullet of mass 0.1 kg is fired with a speed of 100 m//sec , the mass...
Text Solution
|
A sample of radioactive element has a mass of 10 g at an instant t=0. ...
Text Solution
|
What is the probability of a radioactive nucleus to survive one mean l...
Text Solution
|
A spring of force constant k is cut into two pieces such that one piec...
Text Solution
|
The average acceleration of a particle performing SHM over one complet...
Text Solution
|
Light of wavelength 500 nm is incident on a metal with work function 2...
Text Solution
|
When a piece of metal is illuminated by a monochromatic light of wavel...
Text Solution
|
Two wires having same length and material are stretched by same force....
Text Solution
|
Two water pipes of diameters 2 cm and 4 cm are connected with the main...
Text Solution
|
A plane mirror of circular shape with radius r=20cm is fixed to the ce...
Text Solution
|