A conducting coil of 1900 turns is connected to a galvanometer, and the total resistance of the circuit is 30 2. The area of each turn is 4.00 x 104 m². This coil is moved from a region where the magnetic field is zero into a region where it is nonzero, the normal to the coil being kept parallel to the magnetic field. The amount of charge that is induced to flow around the circuit is measured to be 7.5x 10-3 C. Find the magnitude of the magnetic field. Number i Units
Q: 47.0 cm of copper wire (diameter = 1.10 mm, resistivity = 1.69 × 10-8Ω·m) is formed into a circular…
A:
Q: A coil with 8 turns has square loops measuring 0.2m on a side and a resistance of 3Ω. It is placed…
A:
Q: A circular loop of radius 11.7 cm is placed in a uniform magnetic field. (a) If the field is…
A: ϕ=BAcosθθ is the angle between magnetic field and outward normal vector to the plane of coil When…
Q: A coil formed by wrapping 70 turns of wire in the shape of a square is positioned in a magnetic…
A:
Q: A coil of wire consists of 65.0 turns and has an area of 7.9 m2. The magnetic field through the…
A: The given values are, N=65.0A=7.9 m2∆B=12.9 T-4.2 T=8.7 T∆t=0.15 s
Q: A 105-turn square wire coil of area 0.040 m2 rotates about a vertical axis at 1,800 rev/min, as…
A: GIVEN, area= 0.040 m^2 ω=1800 revmin*1min 60 sec×2π rad1 rev=188.5 red/sec B=2.0 ✕ 10−5 T N=105
Q: A rectangular coil with dimensions 0.18 m by 0.27 m has 550 turns of wire. It is rotated about its…
A: Rectangular coil area "A"= 0.18×0.27 m² No. Of turns "N"= 550 magnetic field "B"= 0.56 T maximum…
Q: In an experiment designed to measure the Earth's magnetic field using the Hall effect, a copper bar…
A:
Q: A loop of wire with a radius of 10 cm is in a uniform magnetic field; it is perpendicular to the…
A:
Q: A solenoid of 69 turns and area 20 cm2 has its ends connected together though a resistance of 5…
A: Given value--- No. of turns = 69. Area = 20 cm2. Resistance = 5 Ohm. Magnetic field = 3 × 10-2 T.…
Q: A coil with a wire that is wound around a 2.0 m² hollow tube 35 times. A uniform magnetic field is…
A: Area, A=2.0 m2 Number of turns, N=35 Initial magnetic field, Bini=0.00 T Final magnetic field,…
Q: A rectangular coil with sides 0.140 m by 0.210 m has 513 turns of wire. It is rotated about its long…
A:
Q: A 0.200-m wire is moved parallel to a 0.500-T magnetic field at a speed of 1.50 m/s. What emf is…
A: Length, l = 0.200 mField, B = 0.500 TSpeed, v = 1.50 m/sInduced emf, ε = ?
Q: In one of NASA's space tether experiments, a 20.0 km-long conducting wire was deployed by the space…
A: Length of the wire, L=20km=20×103m Orbital speed, v=7.86×103m/s Magnetic field, B=1.51×10-5T
Q: One hundred turns of (insulated) copper wire are wrapped around a wooden cylindrical core of…
A:
Q: A 13-cm-diameter circular loop of wire is placed in a 0.50-T magnetic field. (a)When the plane of…
A: When the field is perpendicular to the plane of the loop, the area vector which is always…
Q: The magnetic flux through a coil of wire changes from 9T m- to zero in a time of 0.50 s. What is the…
A: 18 V
Q: A rectangular loop has dimensions of 8cm x 5cm and 75 turns. The loop has a total resistance8 Ωand a…
A:
Q: AV = 36 mV battery is connected to a single turn loop of dimensions a = 15 cm by b = 8 cm has a…
A: Calculate the area of the loop. A=abA=(15 cm)(8 cm)A=120 cm2×(1 m100 cm)2A=1.20×10−2 m2
Q: A 15-turn circular loop of wire is placed into a magnetic field with initial magnitude 1.2 T. Over a…
A:
Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…
A:
Q: In an experiment designed to measure the Earth's magnetic field using the Hall effect, a copper bar…
A:
Q: A current /= 40.0 A flows through a strip of metal. An electromagnet is switched on so that there is…
A:
Q: The magnetic flux that passes through one turn of a 14-turn coil of wire changes to 2.71 from 9.23…
A: From faraday's law of induction, we know that the magnitude of induced emf is directly proportional…
Q: The loop in the figure is being pushed into the 0.20 TT magnetic field at 50 m/sm/s. The resistance…
A: Magnetic field B = 0.20 T.Velocity is given as, v = 50 m/s.Resistance of the loop Width of the loop…
Q: Suppose you rotate a 1000 turn, 19 cm diameter coil in the Earth’s 5.00 × 10-5 T magnetic field.…
A:
Q: In an experiment designed to measure the Earth's magnetic field using the Hall effect, a copper bar…
A:
Q: A 100-turn square wire coil of area 0.040 m2 rotates about a vertical axis at 1,450 rev/min, as…
A: Coil of area (A) = 0.040 m2 Number of turns (N) = 110 Angular frequency (ω) = 1450 rev/min = 1450…
Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…
A:
Q: An emf is induced by rotating a 1060 turn, 20.0 cm diameter coil in the Earth's 4.85 x 10-5 T…
A: Number of turns, N=1060 Diameter, d=20 cm=0.20 m Radius, R=0.10 m Magnetic field, B=4.85×10-5 T Time…
Q: In an experiment designed to measure the Earth's magnetic field using the Hall effect, a copper bar…
A: Given data: The thickness of bar is t=0.440 cm. The current in the conductor is I=8 A. The Hall…
Q: The circuit in the figure below is located in a magnetic field whose magnitude varies with time…
A: Resistance per length of wire R=0.099 ohm/mSection PQ of length a= 60.0cm…
Q: The magnetic field perpendicular to a single 16.7-cm-diameter circular loop of copper wire decreases…
A:
Q: A coil of 15 loops of wire is laying on the table. It experiences an increasing magnetic field going…
A:
Q: A student is performing a physics lab to test Faraday's Law. She places an 85-turn wire loop of…
A: Number of turns is N = 85 Radius of the loop is r = 5 cm = 0.05 m Time taken to reduce magnetic…
Q: An astronaut is connected to her spacecraft by a 29-m-long tether cord as she and the spacecraft…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A single circular loop of wire of radius 0.25m is positioned in a uniform magnetic field of 0.25T that points out of the page. What is the magnitude of the average EMF induced in the loop if it's orientation changes from being in the plane of the page to out of/into the page over a time period of 0.59seconds?In an experiment designed to measure the Earth's magnetic field using the Hall effect, a copper bar 0.450 cm thick is positioned along an east-west direction. Assume n = 8.46 x 1028 electrons/m3 and the plane of the bar is rotated to be perpendicular to the direction of B. If a current of 8.00 A in the conductor results in a Hall voltage of 5.75 x 10-12 v, what is the magnitude of the Earth's magnetic field at this location? µTA circular wire coil with 25 turns and radius 1.02 cm is placed in a uniform magnetic field of strength 6.04 T, directed perpendicular to the plane of the wire loops. Over a period of 1.85 s, the magnetic field fades away to zero. What is the average induced emf (voltage) in the coil over this period of time? 0.016 V 0.035 V 0.043 V 0.027 V
- You have a closed square loop of wire with length 44cm and a resistance of 750Ω. If there is a magnetic field of strength 0.2T going perpendicular through the loop at what rate (in T /s) does the magnetic field have to change in order to have a current of 0.2A through the loop?A conducting coil of 1900 turns is connected to a galvanometer, and the total resistance of the circuit is 30 2. The area of each turn is 4.00 x 10-4 m². This coil is moved from a region where the magnetic field is zero into a region where it is nonzero, the normal to the coil being kept parallel to the magnetic field. The amount of charge that is induced to flow around the circuit is measured to be 7.5 × 10-³ C. Find the magnitude of the magnetic field. Number i 0.29 Units TConsider the Hall voltage induced on a patient’s heart while being scanned by an MRI unit. l = 8.5 cmv = 7.5 cm/s Approximate the conducting path on the heart wall by a wire 8.5 cm long that moves at 7.5 cm/s perpendicular to a 1.50 T magnetic field. Find the Hall voltage across the patient's heart in mV.
- A loop of wire enclosing an area of 0.03 m^2 has a magnetic field passing through its plane at an angle to the plane. The component of the field perpendicular to the plane is 0.5 T, and the component parallel to the plane is 0.8 T. What is the magnetic flux through this coil?Suppose you have a long, skinny conductor that is oriented with its long axis parallel to a uniform magnetic field. Suppose also that the conductor is moving along its long axis in a straight line at constant velocity v. Despite the motion of the conductor, no motional emf is induced. Why? The magnetic field is too uniform The velocity has no component normal to the magnetic field The velocity is too low The conductor is so long and so thin that its electrical resistance is too highAn emf is induced by rotating a 1000 turn, 15 cm diameter coil in the Earth’s 5.00 × 10-5 T magnetic field. What average emf (in volts) is induced, given the plane of the coil is originally perpendicular to the Earth’s field and is rotated to be parallel to the field in 8 ms?
- A technician wearing a circular metal band on his wrist moves his hand into a uniform magnetic field of magnitude 2 T in a time of 0.21 s. If the diameter of the band is 5.2 cm and the field is at an angle of 59° with the plane of the metal band while the hand is in the field, find the magnitude of the average emf induced in the band. 0.0061 V 1.0417 V 0.0417 V 0.0104 VAn emf is induced by rotating a 1447 turn, 20.0 cm diameter coil in the Earth's 5.53 x 10-5 T magnetic field. What average emf is induced, given the plane of the coil is originally perpendicular to the Earth's field and is rotated to be parallel to the field in 10.0 ms? VAn MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner's 2.10 T field with his fingers pointing in the direction of the field. His wedding ring has a diameter of 2.11 cm, and it takes 0.320 s to move it into the field. (a)What average current is induced in the ring if its resistance is 0.0100 Ω? (Enter the magnitude in amperes.) A (b)What average power is dissipated (in W)? W (c) What average magnetic field is induced at the center of the ring? (Enter the magnitude in teslas.)T