Question

8.
FA
3. A steel wire of length 10.0 m is stretched through
1.0 mm. The cross-sectional area of the wire is
4 mm2. The energy density of the wire is (Young's
modulus of wire = 2.0 * 1011 N/m2)
[NCERT Pg. 244]
(2) 5 x 103 J/m3
(1) 2 x 103 J/m3
(3) 103 J/m
(4) 5 x 102 J/m3​

Answer 1

Answer:

The cross-sectional area of the wire is 4 mm”. The energy density of the wire is (Young's modulus of wire = 2.0 x 10' N/m') se answer: 2 x 10.9 J/m 5x 10'J/m2 109/m?

Answer 2

Answer:

sayad 5×103 j/m3

Explanation:

mark me as branlist