The coil employed in a experiment similar to that of Stewart and Tolman has a diameter d=500 mm and N=400 turns of copper wire. The moment the coil stops it is connected through a pair of sliding contacts to a ballistic galvanometer Fig. The total circuit resistance is R-50 ohm. The coil is rotated at a constant speed of n=6000 r.p.m. and quickly brought to a halt, the charge passing through the galvanometer being Q=1.1xx10^(-8)C. Find the specific charge of the charge carriers in copper.

The coil employed in a experiment similar to that of Stewart and Tolma

1.	The coil employed in a experiment similar to that of Stewart and Tolman has a diameter d=500 mm and N=400 turns of copper wire. The moment the coil stops it is connected through a pair of sliding contacts to a ballistic galvanometer Fig. The total circuit resistance is R-50 ohm. The coil is rotated at a constant speed of n=6000 r.p.m. and quickly brought to a halt, the charge passing through the galvanometer being Q=1.1xx10^(-8)C. Find the specific charge of the charge carriers in copper.
Answer» ANSWER :`(Q)/(m)=(pi^(2)d^(2)nN)/(QR)=1.8xx10^(11)C//kg`

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