The resistance of a wire varies directly...

The resistance of a wire varies directly with its length and inversely with its area. If a certain piece of wire 10 m long and 0.10 cm in diameter has a resistance of 100 ohms, what will its resistance be if its is uniformly srretched so that its length becomes 12 m?

144

120

Text Solution

Verified by Experts

Topper's Solved these Questions

Trigonometry : Concept of Measurement of Angle
UNITED BOOK HOUSE|Exercise Exercise |24 Videos
VIDYASAGAR VIDYAPITH MIDNAPORE
UNITED BOOK HOUSE|Exercise EXERCISE|54 Videos

Similar Questions

Explore conceptually related problems

The resistivity of a wire if its length be doubled-

for two different wires-the length, radius and resistivity are in the ratio 2 : 1 . If one of then has resistance of 10Omega , What will be the resistance of the other?

How the resistance of conductor depends on its length and area of cross-section ?

Length diameter and specific resistance of two wires of different materials are each in the radio 2:1. One of the wires has a resistance of 10 ohm. Find the resistance of 10 ohm. Find the lresistance of the other wire.

A wire of resistance 10 Omega is stretched so that its length is thrice its original length. The new resistance is-

Length,diameter and specific resistance of two wires of different materials are each in the ratio 2:1 .One of the wires has a resistance of 10 ohm. Find the resistance of the other wire.

If a wire is stretched to double its length, find the new resistance if the original resistance be R.

UNITED BOOK HOUSE-Variation-Exercise

If x prop y, y prop z, z prop t and t prop x where the constants of va...
Text Solution
|
If a is inversely proportional to b and b is inversely proportion...
Text Solution
|
If x^2 prop yz, y^2 prop zx and z^2 prop xy, then the rlation among th...
Text Solution
|
a prop b and if b = 9 then a = 6, which of the following ratio is equa...
Text Solution
|
If (ax + b/y) prop (cx + d/y) and a, b, c, d are non zero constants, t...
Text Solution
|
If y is directly proportional to x and y=5 when x=2, what is the value...
Text Solution
|
If 1/y - 1/x prop 1/x - 1/y then find the relation between x and y.
Text Solution
|
If a prop b, b prop c, c prop d and d prop a, where the variation cons...
Text Solution
|
If x prop 1/y and y prop 1/z then which one of the following relation ...
Text Solution
|
If (b - c) prop bc, (c - a) prop ca and (a - b) prop ab where k,l,m ar...
Text Solution
|
Given V prop r^3 and V = 18Pi when r = 3. Then relation between V and ...
Text Solution
|
X men can plough Y acres of land in Z days. Then the correct relation ...
Text Solution
|
x prop y + z, y prop z + x and z prop x + y and three variation consta...
Text Solution
|
If 20 men can build a wall 56 metres long in 6 days what length of a s...
Text Solution
|
120 men had food provisions for 200 days. After 5 days, 30 men died du...
Text Solution
|
12 men, working 8 hours a day, complete a piece of work in 10 days. To...
Text Solution
|
The resistance of a wire varies directly with its length and inversely...
Text Solution
|
Given that 'w' varies directly as the product of x and y and inversely...
Text Solution
|
The time required for an elevater to life a weight varies directly wit...
Text Solution
|
The electic power which a transmission line can transmit is proportion...
Text Solution
|