To compare magnetic moments of two magnets by | vedclass

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(D) In the 'sum and difference method' for comparing magnetic moments ($M_1$ and $M_2$) using a vibration magnetometer,the magnets are placed in the s

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All of the above.

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(D) In the 'sum and difference method' for comparing magnetic moments ($M_1$ and $M_2$) using a vibration magnetometer,the magnets are placed in the same orientation (sum) and opposite orientation (difference).The ratio is given by $\frac{M_1}{M_2} = \frac{T_2^2 + T_1^2}{T_2^2 - T_1^2}$.This method is advantageous because:$1$. The moment of inertia $(I)$ of the magnets does not need to be calculated,which eliminates errors associated with its determination.$2$. It requires fewer experimental observations compared to other methods.$3$. The mathematical calculations involved are relatively simpler and fewer in number.

To compare magnetic moments of two magnets by vibration magnetometer,the 'sum and difference method' is better because:

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