Statement -1 : The sensitvity of a moving coil galvanometer is increased by placing a suitable magnetic material as a core inside the coil.
Statement - 2: Soft iron has a high magnetic permeability and cannot be easily magnetized or demagnetized.

Options

A. Statement 1 is true, Statement 2 is true, Statement 2 is a correct explanation for Statement 1.
B. Statement 1 is true, Statement 2 is true, Statement 2 is NOT a correct explanation for Statement 1.
C. Statement 1 is true, Statement 2 is false.
D. Statement 1 is false, Statement 2 is true.

Answer

c

Explanation

`cphi=BINA`
`phi=((BNA)/c)I`
Using iron core, value of magnetic field increases. So,
deflection increases for the same current. Hence, senstivity
increases.
Soft iron can be easily magnetized or demagnetized.
`:.` correct option is (c).