The magnetic field at one place on the ea surface is 55 μT in strength and tilted 60 from horizontal. A 230-turn, 4.5-cm-diam with a resistance of 2.00 2 is connected ballistic galvanometer, a device that mea total charge passing through. The coil is perpendicular to the field, then quickly rot so that the opposite side is facing the ma field.
The magnetic field at one place on the ea surface is 55 μT in strength and tilted 60 from horizontal. A 230-turn, 4.5-cm-diam with a resistance of 2.00 2 is connected ballistic galvanometer, a device that mea total charge passing through. The coil is perpendicular to the field, then quickly rot so that the opposite side is facing the ma field.
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Transcribed Image Text:The magnetic field at one place on the earth's
surface is 55 µT strength and tilted 60° down
from horizontal. A 230-turn, 4.5-cm-diameter coil
with a resistance of 2.00 is connected to a
ballistic galvanometer, a device that measures the
total charge passing through. The coil is held
perpendicular to the field, then quickly rotated 180°
so that the opposite side is facing the magnetic
field.
Part A
Afterward, what does the galvanometer read?
Hint: Use I = dq/dt to relate the net change of flux to the amount of charge that flows through the
galvanometer.
Express your answer to two significant figures and include the appropriate units.
μA
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