A flat coil of wire consisting of 20 turns, each with an area of 10 cm, is positioned perpendicularly to a uniform magnetic field that varies with time according to B=2.5 f
A flat coil of wire consisting of 20 turns, each with an area of 10 cm, is positioned perpendicularly to a uniform magnetic field that varies with time according to B=2.5 f. where t is measured in s and B in T. If the coil has a total resistance of 0.10 9, what is the magnitude of the induced current at 0.8s?
a. 0.20 A b. 0.60 A c. 0.50 A d. 0.80 A e. None of the above
At what frequency should a 170-turn, flat coil of cross sectional area of 250 cm2 be rotated in a uniform 30-mT magnetic field to have a maximum value of the induced emf equal to 6.0 V?
a. 7.5 Hz b. 7.1 Hz c. 8.0 Hz d. 8.4 Hz e. None of the above
Homework Answers
in second problem magnetic
field is very low i.e 30 *10^-3 T . Hence the frequency required to
generate 6V is this much of high i.e f=47.0588 Hz .
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A flat coil of wire consisting of 20 turns, each with an area of 10 cm, is positioned perpendicularly to a uniform magnetic field that varies with time according to B=2.5 f
A flat coil of wire consisting of 15 turns, each with an area of 50 cm2,...
A flat coil of wire consisting of 15 turns, each with an area of 50 cm2, is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 3 T to 7 T in 2.0 s. What is the magnitude of the emf (in Volts) induced in the coil? Your answer should be a number with two decimal places, do not include the unit.
A flat coil of wire consisting of 22 turns, each with an area of 50 cm2,...
A flat coil of wire consisting of 22 turns, each with an area of 50 cm2, is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2 T to 7 T in 2.0 s. What is the magnitude of the emf (in Volts) induced in the coil? Your answer should be a number with two decimal places, do not include the unit.
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coil with 22 turns sits in a magnetic field. The cross-sectional area of the coil is...
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A generator is constructed by rotating a coil of N turns in a magnetic field B...
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A coil of 255 turns and area 0.500 m2 rotates in a uniform magnetic field B...
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