Two moving coil meters `M_1` and `M_2` have the following particulars:
`R_1=10Omega`, `N_1=30`, `A_1=3*6xx10^-3m^2`, `B_1=0*25T`,
`R_2=14Omega`, `N_2=42`, `A_2=1*8xx10^-3m^2`, `B_2=0*50T`
(The spring constants are identical for the two metres). Determine the ratio of (a) current sensitivity and (b) voltage sensitivity of `M_2` and `M_1`.

Explanation

To solve the problem, we need to determine the ratio of current sensitivity and voltage sensitivity of two moving coil meters, \( M_1 \) and \( M_2 \).

### Given Data:
- For \( M_1 \):
- \( R_1 = 10 \, \Omega \)
- \( N_1 = 30 \)
- \( A_1 = 3.6 \times 10^{-3} \, \text{m}^2 \)
- \( B_1 = 0.25 \, \text{T} \)
...