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1. Suppose that a thin wire is wrapped 25 times around a balloon, and then placed...
A square wire wrapped 24 times with a length of 0.2 meters is placed in the...
A square wire wrapped 24 times with a length of 0.2 meters is placed in the x-y plane in a uniform magnetic field directed in the -z direction. The magnetic field changes in magnitude from 0.14 T to 0.38 T in a time of 0.3 seconds. What is the amount, in amps, and the direction of the average induced current if the resistance of the wire is 0.8 Ohms? Indicate clockwise by including a negative sign and counter-clockwise by not...
A circular coil of wire with a radius 4 cm and 150 Turns is placed in...
A circular coil of wire with a radius 4 cm and 150 Turns is placed in a uniform magnetic field of magnitude 0.6 T. The magnetic field is parallel to the area vector; I.e. perpendicular to the plane of the coil. A)What is the magnetic flux through the coil? B)The magnetic field is decreased to 0T in .1 seconds. What is the magnitude of the emf induced in the coil during this time interval?C) If the coil has a resistance...
457 turns of insulated copper wire are wrapped around an iron core of radius 17.91 cm....
457 turns of insulated copper wire are wrapped around an iron core of radius 17.91 cm. The circuit is completed by connecting the coil to a 126.42 resistor. The magnetic field along the coil axis is made to change from 0.1673 T in one direction to 0.6368 T in the other direction. Calculate the total charge that flows through the resistor in this process. NOTES: 1. Note that the question asks for charge, not current 2. Be careful of your...
A circular wire wrapped 7 times with a radius of 0.4 m is placed in the...
A circular wire wrapped 7 times with a radius of 0.4 m is placed in the x-y plane. A current of 5 amps runs counter-clockwise around the wire. What is the magnetic moment of the wire in A m2and its direction? Include a negative sign for the -z direction and a positive sign for the +z direction.
A circular wire wrapped 9 times with a radius of 0.4 m is placed in the...
A circular wire wrapped 9 times with a radius of 0.4 m is placed in the x-y plane. A current of 6 amps runs counter-clockwise around the wire. What is the magnetic moment of the wire in A m2 and its direction? Include a negative sign for the -z direction and a positive sign for the +z direction.
A circular coil of wire with radius 2 cm and 60 turns is placed in a...
A circular coil of wire with radius 2 cm and 60 turns is placed in a uniform magnetic field of magnitude 0.8 T. The magnetic field is parallel to the area vector; i.e. perpendicular to the plane of the coil. a) What is the magnetic flux through the coil? b) The magnetic field is decreased to 0 T in 0.1 s. What is the magnitude of the emf induced in the coil during this time interval? c) If the coil...
A uniform hollow disk has two pieces of thin light wire wrapped around its outer rim...
A uniform hollow disk has two pieces of thin light wire wrapped around its outer rim and is supported from the ceiling (See figure). Suddenly one of the wires breaks, and the remaining wire does not slip as the disk rolls down. The inner radius of the cylinder is 30 cm and the outer radius is 50 cm. Use energy conservation to find the speed of the center of this disk after it has fallen a distance of 2.20 m.
A physician is using a device with a thin circular coil of current-carrying wire of radius...
A physician is using a device with a thin circular coil of current-carrying wire of radius 3.30 cm to stimulate neurons in a patient's brain. The coil is placed directly against the patient's skull, and everywhere within the area of the coil, the magnetic field changes at a rate of 1.10 X 104 T/s. (a) What is the magnitude of the emf (in V) induced around the circumference of this circular area in the brain? (Assume the magnetic field is...
1. A single strand of wire of adjustable length is wound around the circumference of a...
1. A single strand of wire of adjustable length is wound around the circumference of a round balloon that has a diameter of 18.0 cm. A uniform magnetic field with a magnitude of 1.20 T is perpendicular to the plane of the loop. If the balloon is blown up such that its diameter and the diameter of the wire loop increase to 28.0 cm in 0.044s, what the magnitude of the average value of the emf induced in the loop?...
QUESTION 27 A circular coil of wire with radius 3 cm and 50 turns is placed...
QUESTION 27 A circular coil of wire with radius 3 cm and 50 turns is placed in a uniform magnetic field of magnitude 0.4 T. The magnetic field is parallel to the area vector; l.e. perpendicular to the plane of the coll." a) What is the magnetic flux through the coll? b) The magnetic field is decreased to 0 in 0.1s. What is the magnitude of the emf induced in the coll during this time interval? c) If the coil...
457 turns of insulated copper wire are wrapped around an iron core of radius 17.91 cm. The circuit is completed by connecting the coil to a 126.42 resistor. The magnetic field along the coil axis is made to change from 0.1673 T in one direction to 0.6368 T in the other direction. Calculate the total charge that flows through the resistor in this process. NOTES: 1. Note that the question asks for charge, not current 2. Be careful of your...
A circular coil of wire with radius 2 cm and 60 turns is placed in a uniform magnetic field of magnitude 0.8 T. The magnetic field is parallel to the area vector; i.e. perpendicular to the plane of the coil. a) What is the magnetic flux through the coil? b) The magnetic field is decreased to 0 T in 0.1 s. What is the magnitude of the emf induced in the coil during this time interval? c) If the coil...
A uniform hollow disk has two pieces of thin light wire wrapped around its outer rim and is supported from the ceiling (See figure). Suddenly one of the wires breaks, and the remaining wire does not slip as the disk rolls down. The inner radius of the cylinder is 30 cm and the outer radius is 50 cm. Use energy conservation to find the speed of the center of this disk after it has fallen a distance of 2.20 m.
A physician is using a device with a thin circular coil of current-carrying wire of radius 3.30 cm to stimulate neurons in a patient's brain. The coil is placed directly against the patient's skull, and everywhere within the area of the coil, the magnetic field changes at a rate of 1.10 X 104 T/s. (a) What is the magnitude of the emf (in V) induced around the circumference of this circular area in the brain? (Assume the magnetic field is...
1. A single strand of wire of adjustable length is wound around the circumference of a round balloon that has a diameter of 18.0 cm. A uniform magnetic field with a magnitude of 1.20 T is perpendicular to the plane of the loop. If the balloon is blown up such that its diameter and the diameter of the wire loop increase to 28.0 cm in 0.044s, what the magnitude of the average value of the emf induced in the loop?...
QUESTION 27 A circular coil of wire with radius 3 cm and 50 turns is placed in a uniform magnetic field of magnitude 0.4 T. The magnetic field is parallel to the area vector; l.e. perpendicular to the plane of the coll." a) What is the magnetic flux through the coll? b) The magnetic field is decreased to 0 in 0.1s. What is the magnitude of the emf induced in the coll during this time interval? c) If the coil...
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