The value of tension in a long thin metal wire has been changed from T1 to T_2. The lengths of the metal wire at two different values of tension T1 and T1 are l_1 and l_2 respectively. The actual len…

Question

The value of tension in a long thin metal wire has been changed from T1 to T_2. The lengths of the metal wire at two different values of tension T1 and T1 are l_1 and l_2 respectively. The actual length of the metal wire is:

Accepted Answer

Correct answer: A. (a) Y= FLA L ⇒Y= T_1l_0A(l_1-l_0)= T_2l_0A(l_2-l_0) 1= T_1(l_2-l_0)T_2(l_1-l_0) T_2l_1-T_2l_0=T_1l_2-T_1l_0 (T_1-T_2)l_0=T_1l_2-T_2l_1 l_0= ( T_1l_2-T_2l_1T_1-T_2 )

$The value of tension in a long thin metal wire has been changed from T1 to T_{2} . The lengths of the metal wire at two different values of tension T1 and T1 are l_{1} and l_{2} respectively. The actual length of the metal wire is:$

Solution

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