A moving coil galvanometer has a coil with 175 turns and area 1 cm^(2).It uses a torsion band of torsion constant 10^(6) N-m/rad. The coil is placed in a magnetic field B parallel to its plane. The coil deflects by 1° for a current of 1 mA. The value of B (in Tesla) is approximately

A moving coil galvanometer has a coil with 175 turns and area 1 cm^(2)

1.	A moving coil galvanometer has a coil with 175 turns and area 1 cm^(2).It uses a torsion band of torsion constant 10^(6) N-m/rad. The coil is placed in a magnetic field B parallel to its plane. The coil deflects by 1° for a current of 1 mA. The value of B (in Tesla) is approximately
Answer» `10^(-1)` `10^(-4)` `10^(-3)` `10^(-2)` SOLUTION :`T = MB,C phi = NIAB` `B = (10^(-6) XX pi)/(175 xx 10^(-4) xx 10^(-3)) = 10^(-3) T`

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A moving coil galvanometer has a coil with 175 turns and area 1 cm^(2).It uses a torsion band of torsion constant 10^(6) N-m/rad. The coil is placed in a magnetic field B parallel to its plane. The coil deflects by 1° for a current of 1 mA. The value of B (in Tesla) is approximately

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