Question

- A metal plate of area 1.2 mº increases its area by 2.4 x 104 m2 when it is heated from 0°
C to 100° C. The coefficient of cubical expansion of the metal expressed in per °C is
1)2 x 10-6
234 x 10-6
3)6 x 106
4) 3 x 10-6​

Answer 1

Answer:

Al-Attempt any Eight-2 marks each)

3) Earth's magnetic field at the equator is

approximately 4x10 T. Calculate Earth's

dipole moment. (Radius of Earth =

6.4*10* m, k = 4x10' SI units)