Answered Feb 05, 2023
Correct Answer - 155 cm
Given: L = 40 cm = 0.4 m, F = 2000 N = 2 × 103N l = 0.5 cm = 0.005 m, A = L2 = 0.16 m2 To find: Modulus of rigidity...
Correct option is: (D) 0.002
Correct option is: (D) 2 × 10-3 C/m
Given: r = 0.4 mm = 0.4 × 10-3 m, I = 2 A To find: Current density (J) Formula: J = \(\frac{I}{A}\) Calculation: From formula, J = \(\frac{2}{3.142\times(0.4)^2\times10^{-6}}\) = 3.978 × 106 A/m2
A) homogeneous
B) heterogeneous
C) Force, Area
D) Force / area
(i) false (ii) true (iii) true
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