Subject: Physics, asked on 21/4/18

## Is rigidity and elasticity the same thing from the chapter mechanical properties of solids???

Subject: Physics, asked on 10/4/18

## Solve this: Q.40. In which of the following electrical devices electromagnetic motor is used? (A) Bulb (B) Heater (C) Transformer (D) Washing Machine

Subject: Physics, asked on 4/4/18

## derive poisons ratio

Subject: Physics, asked on 4/4/18

## what is hooke's law and what is compressibility

Subject: Physics, asked on 31/3/18

## Plz ans as soon as possible

Subject: Physics, asked on 30/3/18

## Solve this :

Subject: Physics, asked on 19/3/18

## Two exactly similar wires of steel and copper are stretched by equal forces. If the total elongation is 1 cm, find how much each wire is elongated. Given Y for steel is 20 x 10^10 N/m^2 and copper is 12 x 10^10 N/m^2​

Subject: Physics, asked on 19/3/18

## ​Calculate the percentage increase in length of a wire of diameter 2.2 mm stretched by a load of 100kg. Young’s modulus of wire is 12.5 x 10^10  N/m^2

Subject: Physics, asked on 16/3/18

## This is the question of hc verma pg 300 exercise q4. As the stress is same in both wires Y and strain are inversely related. So the answer given is wrong

Subject: Physics, asked on 15/3/18

Subject: Physics, asked on 9/3/18

Subject: Physics, asked on 8/3/18

## 16) A body of mass 3.14 kg is suspended form one end of a wire of length 10 m. The radius if cross - section of the wire is changing uniformly from at the top (i.e. point of suspension) to at the bottom. Young's modulus of elasticity is The change of length of the wire is.

Subject: Physics, asked on 8/3/18

## Plz fast Q.10. If the work done in stretching a wire by 1 mm is 2 J, then work necessary for stretching another wire of same material but with double radius of cross-section and half of the length by 1 mm is (a) 8 J (b) 16 J (c) 4 J (d) 32 J

Subject: Physics, asked on 7/3/18

## Show that value of poisson's ratio lies -1 and o.5

Subject: Physics, asked on 6/3/18

## graph of stress and strain

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