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3. A coil consists of 130 circular loops of wire of radius 4.4 cm. A current...
A thin coil has 60 circular turns of wire of radius 4 cm. The current in...
A thin coil has 60 circular turns of wire of radius 4 cm. The current in the wire is 8 amperes. (a) What is the magnetic dipole moment of this coil? (b) At a distance of 40 cm from the center of the coil, along the axis of the coil, what is the approximate magnitude of the magnetic field contributed by the coil? The coil is placed with its axis along the x axis. A bar magnet whose magnetic dipole...
PLEASE ANSWER ALL PARTS a. A circular coil of wire with 7 loops and a radius...
PLEASE ANSWER ALL PARTS a. A circular coil of wire with 7 loops and a radius of 0.041 m is placed inside a solenoid. The coil is aligned so that the normal to the coil is parallel to the magnetic field in the solenoid. The solenoid consists of 40000 loops of wire and is 0.18 m long. Initially a current of 0.5 A runs through the solenoid. The current is increased to 4.5 A over a period of 4.1 s....
1) A 179‑turn circular coil of radius 3.55 cm and negligible resistance is immersed in a...
1) A 179‑turn circular coil of radius 3.55 cm and negligible resistance is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. The coil is connected to a 13.7 Ω resistor to create a closed circuit. During a time interval of 0.121 s, the magnetic field strength decreases uniformly from 0.643 T to zero. Find the energy, in millijoules, that is dissipated in the resistor during this time interval. energy: mJ 2) You decide...
1. The armature of an ac generator is a circular coil with 292 turns and radius...
1. The armature of an ac generator is a circular coil with 292
turns and radius 4.6 cm. When the armature rotates at 939 rpm, the
amplitude of the emf in the coil is 21.3 V. What is the strength of
the magnetic field (assumed to be uniform)?
2. The armature of an ac generator is a rectangular coil 27.0 cm
by 17.9 cm with 294 turns. It is immersed in a uniform magnetic
field of magnitude 3.0 T. If...
A coil composed of five circular loops of wire (area of each loop is 0.125 m^2)...
A coil composed of five circular loops of wire (area of each loop is 0.125 m^2) lies in the plane of this sheet of paper. A magnetic field pointed perpendicular out of the sheet of paper (towards us), and begins at a strength of 2.5 tesla. Over 0.025 seconds, the magnetic field reduces to zero tesla. (a) Calculate the induced voltage in this coil caused by this changing magnetic field. (b) What direction will current flow around this coil (clockwise...
A 19.4 cm diameter circular loop of wire is placed with the plane of the loop...
A 19.4 cm diameter circular loop of wire is placed with the plane of the loop parallel to the uniform magnetic field between the pole pieces of a large magnet. When 3.50 A flows in the coil, the torque on it is 0.145 mN. What is the magnetic field strength?
A circular coil of wire has a diameter of 20.0 cm and contains 10 loops. The...
A circular coil of wire has a diameter of 20.0 cm and contains 10 loops. The current in each loop is 3.00 amps, and the coil is placed in a 2.00-T magnetic field. What are the minimum and maximum torques exerted on the coil by the magnetic field? Please show me how you got the answer
A circular wire coil (10.3 cm in diameter) is initially oriented so that its plane is...
A circular wire coil (10.3 cm in diameter) is initially oriented so that its plane is perpendicular to a magnetic field of 0.6 T pointing up. During the course of 0.48 s, the field is changed to one of 0.2T pointing down. What is the average induced emf in the coil? Take the initial direction of the magnetic field as being the positive direction. Answer: Check
A closely wound, circular coil with radius 2.60 cm has 750 turns of wire. "Closely Wound"...
A closely wound, circular coil with radius 2.60 cm has 750 turns of wire. "Closely Wound" means all of the wire loops can be approximated to be the same radius and at the same position. What must the current in the coil be if the magnetic field at the center of the coil is 0.0790 T ? I I = 4.36 A At what distance x from the center of the coil, on the axis of the coil, is the...
A coil consists of five loops of wire, each with an area of 0.20 m2. The...
A coil consists of five loops of wire, each with an area of 0.20 m2. The coil is oriented with its plane perpendicular to a magnetic field that increases uniformly from 1 x 10-2 T to 2.5 x 10-2 T in a time of 5 x 10-3 s. (a) What is the induced emf in the coil? (b) If the total resistance of the coil is 5 Ω, what the current induced in the coil?
A thin coil has 60 circular turns of wire of radius 4 cm. The current in the wire is 8 amperes. (a) What is the magnetic dipole moment of this coil? (b) At a distance of 40 cm from the center of the coil, along the axis of the coil, what is the approximate magnitude of the magnetic field contributed by the coil? The coil is placed with its axis along the x axis. A bar magnet whose magnetic dipole...
1. The armature of an ac generator is a circular coil with 292
turns and radius 4.6 cm. When the armature rotates at 939 rpm, the
amplitude of the emf in the coil is 21.3 V. What is the strength of
the magnetic field (assumed to be uniform)?
2. The armature of an ac generator is a rectangular coil 27.0 cm
by 17.9 cm with 294 turns. It is immersed in a uniform magnetic
field of magnitude 3.0 T. If...
A circular wire coil (10.3 cm in diameter) is initially oriented so that its plane is perpendicular to a magnetic field of 0.6 T pointing up. During the course of 0.48 s, the field is changed to one of 0.2T pointing down. What is the average induced emf in the coil? Take the initial direction of the magnetic field as being the positive direction. Answer: Check
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