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Showing posts with label ELASTICITY. Show all posts
Showing posts with label ELASTICITY. Show all posts

A Wire Of Length L, Area Of Cross Section A Is Hanging From A Fixed Support. The Length Of The Wire Changes To L1 When Mass M Is Suspended From Its Free End. The Expression For Young’s Modulus Is :

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 (a) MgL1  / AL (b) Mg(L1 -L)/ AL (c) MgL / AL1 (d) MgL / A(L1 -L)
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In a potentiometer circuit, a cell of EMF 1.5 V gives a balance point at 36 cm length of wire. If another cell of EMF 2.5 V replaces the first cell, then at what length of the wire, does the balance point occur?

In a potentiometer circuit, a cell of EMF 1.5 V gives a balance point at 36 cm length of wire. If another cell of EMF 2.5 V replaces the fi...