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A coil is in a perpendicular magnetic field that is described by the expression B =...
B Crank In the figure provided, a magnet creates a magnetic field of strength 3.63 T....
B Crank In the figure provided, a magnet creates a magnetic field of strength 3.63 T. A hand crank generator consists of a semi circle with a radius of r = 5.50 cm as shown in the figure. The resistance in the bulb is 7.20 9. With what frequency will you have to turn the crank for the bulb to dissipate a power that has a maximum value of 6.00 W? Answer: 363 rad/s
A generator is constructed by rotating a coil of N turns in a magnetic field B...
A generator is constructed by rotating a coil of N turns in a magnetic field B at a frequency f. The internal resistance of the coil is R and the cross sectional area of the coil is A. The average induced EMF doubles if the magnetic field B is doubled. The average induced EMF doubles if the area A is doubled. The average induced EMF doubles if the frequency f is doubled. The average induced EMF doubles if the resistance...
A generator is constructed by rotating a coil of N turns in a magnetic field B...
A generator is constructed by rotating a coil of N turns in a magnetic field B at a frequency f. The internal resistance of the coil is R and the cross sectional area of the coil is A. True or False 1. The average induced EMF doubles if the resistance R is doubled 2. The average induced EMF doubles if the magnetic field B is doubled 3. The maximum induced EMF occurs when the coil is rotated about an axis...
Q1. A magnetic field points perpendicularly into a 2.0 cm x 4.0 cm rectangular coil with...
Q1. A magnetic field points perpendicularly into a 2.0 cm x 4.0 cm rectangular coil with 120 turns and 0.25 Ω total resistance. At a certain instant, the magnetic field strength is 0.22 T and it is increasing at a rate of 2.5 T/s a) The induced current in the coil is a. clockwise. b. counter clockwise. b) Calculate the instantaneous induced current in the coil.
A 141 turn circular coil of radius 2.61 cm is immersed in a uniform magnetic field...
A 141 turn circular coil of radius 2.61 cm is immersed in a
uniform magnetic field that is perpendicular to the plane of the
coil. Over an interval of 0.177 s , the magnetic field strength
increases from 53.1 mT to 96.9 mT . Find the magnitude of the
average emf avg induced in the coil during this time interval, in
millivolts.
A 141 turn circular coil of radius 2.61 cm is immersed in a uniform magnetic field that is...
4. A 130 turn circular coil has a diameter of 5.2 cm. A magnetic field perpendicular...
4. A 130 turn circular coil has a diameter of 5.2 cm. A magnetic field perpendicular to the coil is changing at 0.75 T/. The induced emf in the coil is (a) 0.07 V (b) 0.14V (c) 0.21V (d) 0.28V 5.a cm 130 V T 0 75T
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of...
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.26 V and a current of 4.9 A are induced in the coil. The wire is then re-formed into a single-turn square coil, which is used in the same magnetic field (again perpendicular to the plane of the coil and with a magnitude changing at the same rate). What (a) emf and (b) current are...
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of...
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.61 V and a current of 3.2 A are induced in the coil. The wire is the re-formed into a single-turn square coil, which is used in the same magnetic field (again perpendicular to the plane of the coil and with a magnitude changing at the same rate). What emf and current are induced in...
can you please show me how to do each of these thank you! The magnetic field...
can you please show me how to do each of these thank
you!
The magnetic field in the region between the poles of an electromagnet is uniform at any time, butis a point) increasing at the rate of 0.020 T/s. The area of the conducting loop in the field is 180 cm?. What is the magnitude of the induced emf? 0.12 mV 0.90 ml 0.11 mV 0:0.36 mV A rectangular loop with area A rotates with constant angular velocity o...
A coil 3.55 cm radius, containing 560 turns, is placed in a uniform magnetic field that...
A coil 3.55 cm radius, containing 560 turns, is placed in a uniform magnetic field that varies with time according to B=( 1.20×10−2 T/s )t+( 2.65×10−5 T/s4 )t4. The coil is connected to a 630-Ω resistor, and its plane is perpendicular to the magnetic field. You can ignore the resistance of the coil. What is the current in the resistor at time t0 = 5.50 s? I=?
B Crank In the figure provided, a magnet creates a magnetic field of strength 3.63 T. A hand crank generator consists of a semi circle with a radius of r = 5.50 cm as shown in the figure. The resistance in the bulb is 7.20 9. With what frequency will you have to turn the crank for the bulb to dissipate a power that has a maximum value of 6.00 W? Answer: 363 rad/s
Q1. A magnetic field points perpendicularly into a 2.0 cm x 4.0 cm rectangular coil with 120 turns and 0.25 Ω total resistance. At a certain instant, the magnetic field strength is 0.22 T and it is increasing at a rate of 2.5 T/s a) The induced current in the coil is a. clockwise. b. counter clockwise. b) Calculate the instantaneous induced current in the coil.
A 141 turn circular coil of radius 2.61 cm is immersed in a
uniform magnetic field that is perpendicular to the plane of the
coil. Over an interval of 0.177 s , the magnetic field strength
increases from 53.1 mT to 96.9 mT . Find the magnitude of the
average emf avg induced in the coil during this time interval, in
millivolts.
A 141 turn circular coil of radius 2.61 cm is immersed in a uniform magnetic field that is...
4. A 130 turn circular coil has a diameter of 5.2 cm. A magnetic field perpendicular to the coil is changing at 0.75 T/. The induced emf in the coil is (a) 0.07 V (b) 0.14V (c) 0.21V (d) 0.28V 5.a cm 130 V T 0 75T
can you please show me how to do each of these thank
you!
The magnetic field in the region between the poles of an electromagnet is uniform at any time, butis a point) increasing at the rate of 0.020 T/s. The area of the conducting loop in the field is 180 cm?. What is the magnitude of the induced emf? 0.12 mV 0.90 ml 0.11 mV 0:0.36 mV A rectangular loop with area A rotates with constant angular velocity o...
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