12. A copper ring (3.5cm radius) is moving with constant speed into of a region of uniform magnetic field (3.2-T). Half the ring is in the magnetic field, the other half is in a region of no magnetic field (see the sketch). In which direction (CW or CCW) is the induced current moving around the ring? Cw B عنه 12
Q: A 1.90 m length of wire is held in an east–west direction and moves horizontally to the north with a…
A:
Q: Figure 2 shows a top view of a bar (the resistor of the bar R2 = 5.00 Q) , that can slide on two…
A:
Q: Uniform magnetic field B points out of the page, and lies within a circle of radius R = 4.18 m. An…
A: Given: The radius of the circle is R=4.18 m. The decrease rate of magnetic field is dBdt=-6.71 T/s.…
Q: A rectangular loop with sides of length a= 1.90 cm and b= 4.20 cm is placed near a wire that carries…
A:
Q: In the figure, a wire loop of dimensions L = 42.3 cm and W = 26.5 cm lies in a magnetic field. What…
A:
Q: A 200 turn, 4.0 cm diameter solenoid is placed in a magnetic field of 0.45 T pointing into the page.…
A: a. Lenz’s law requires that the solenoid opposes any quick changes in the external magnetic field by…
Q: 2) A circular loop of radius 65cm rotates within a uniform 0.34T magnetic field. loop's normal…
A: Given Data:Radius of the loop, r = 65cm = 0.65m, so the area of the loop, A = πr² =…
Q: A circular loop of wire with the radius of 14.0 cm containing a 23.00 resistor is perpendicular to…
A: Given Data Radius of the circular loop is r=14.0 cm=14.0 cm×1 m100 cm=0.140 m Resistance of the wire…
Q: A square bobbin has 50 turns of wire. It is placed in a magnetic field such that the normal to the…
A:
Q: Magnetic Field (into the page) What direction is the induced Magnetic Field within the closed loop?
A: Given: At t = 1.0 s Magnetic field (B) = 12.0 T At t = 4.0 s B = 2.0 T
Q: 9. A flat circular coil with 90 turns, a radius of 4.50 x 10-2 m, and a resistance of 0.300 N is…
A: Write the given values with suitable variables. N=90A=πr2=π4.5×10-22=6.36×10-3 m2R=0.3 ΩΔBΔt=0.779…
Q: 4. A squre coil of wire with 800 turns and size a = 10.0 cm on each side, is held next to a long…
A: Note-Since we only answer up to 3 sub-parts, we will answer the first 3. Please resubmit the…
Q: Icoil formed by wrapping Go turns 4 wire in the Shape of a square is positioned in a magnetic field…
A: Given: The number of turns is 60. The angle between normal to the plane of the coil and…
Q: A 135 turn circular coil of radius 2.19 cm is immersed in a uniform magnetic field that is…
A:
Q: A 2.25 m length of wire is held in an east–west direction and moves horizontally to the north with a…
A: In the following problem, We have a wire of length l held in in east-west direction and moves…
Q: A 1.0-m long straight wire is held in a horizontal east-west orientation and is then dropped.…
A:
Q: The component of the external magnetic field along the central axis of a 33 turn circular coil of…
A: Given: The number of turns is 33. The radius of the coil is 44 cm. The initial magnetic field is 2.4…
Q: Time left 1:15:1 A 40 turn circular coil (radius = 4.0 cm, total resistance %3D 0.20 0) is placed in…
A: Here number of turns ,N= 40 Radius of the coil ,r= 4cm = 4×10-2m Total resistance, R= 0.2 ohm…
Q: 1. The conductive bar m = 45g starts moving from rest, the magnetic field B = 2.8T, the length of…
A: It is given that,The mass of the conducting bar is m=45 g=0.045 kg.The magnetic field strength is…
Q: What is the average induced current in the loop if the radius of the loop is steadily increased from…
A: Given, Magnitude of the magentic field in the region, B = 0.83 Tradius of the current loop increase…
Q: A 2.05 m length of wire is held in an east–west direction and moves horizontally to the north with a…
A: Scenario: Wire is located in EW direction & moved towards N horizontally. In this region,…
Q: A 40-loop circular coil has a radius of 5.0 cm. It is placed in a magnetic field so that the field…
A: Given: The number of the loop is 40. The radius of the loop is 5 cm. The angle between the magnetic…
Q: The magnitude of the magnetic flux through the surface of a circular plate is 5.00 x 10-5 T. m² when…
A:
Q: Chapter 37, Problem 012 The length of a spaceship is measured to be exactly 1/2 its rest length. (a)…
A: Given that, the length of the spaceship is measured to exactly half of its rest length. It is…
Step by step
Solved in 2 steps
- The component of the external magnetic field along the central axis of a 78 turn circular coil of radius 32.0 cm decreases from 2.40 T to 0.100 T in 2.00 s. If the resistance of the coil is R=3.00 Ω, what is the magnitude of the induced current in the coil? magnitude: A What is the direction of the current if the axial component of the field points away from the viewer?A square loop of wire is inside a region of changing magnetic field (see figure below). The sides of the square loop are 0.1m with a resistor of resistance 2502 connected to one of the sides. The magnetic field increases linearly from 0.2T to 0.5T in 3s. What is the magnitude of E.M.F induced across the resistor. O ImV 10V 232 2 Ο ΙμνThe component of the external magnetic field along the central axis of a 69 turn circular coil of radius 47.0 cm decreases from 2.90 T to 0.700 T in 2.10 s. If the resistance of the coil is R = 3.00 §, what is the magnitude of the induced current in the coil? magnitude: What is the direction of the current if the axial component of the field points away from the viewer? counter-clockwise clockwise A
- O Resources Give Up O Hint A 145 turn circular coil of radius 2.29 cm is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. Over an interval of 0.169 s, the magnetic field strength increases from 55.7 mT to 99.3 mT. Find the magnitude of the average emf Eve induced in the coil during this time interval, in millivolts. Eve = mV1.2 Find the magnetic flux once coil is rotated about 0.3 seconds? A. 0.01 Wb B. 0 Wb C. 0.1 Wb D. 1 WbA 40 turn circular coil (radius = 4.0 cm, total resistance = 0.20 Q) is placed in a uniform magnetic field directed perpendicular to the plane of the coil. The magnitude of the magnetic field varies with time as given by B = 100 sin(10 Tit) mT where t is measured in s. What is the magnitude of the induced current in the coil at 0.07 s? а. 1.85 А O b. 3.21 A О с. 1.57 А O d. 2.55 A O e. 0 A
- A 100-turn square coil of side 20.0 cm rotates about a vertical axis at 4.9 x10° rev/min as indicated in the figure. The horizontal component of the Earth's magnetic field at the coil's location is equal to 2.00 x 10-5T. Calculate the maximum emf induced ( in units of mV) in the coil by this field. 20.0 cm 20.0 cm Select one: A. 11.43 B. 3.92 C. 16.33 D. 2.61 E. 6.537. An air-filled long solenoid has a turn density of 1000 turns/m, a radius of 1.50 cm and carries a current of 0.0700 A that is increasing at a rate of 1.50 A/s. (a) Find the magnitude of the magnetic field inside the solenoid. (b) Find the induced electric field at a point 0.500 cm from the solenoid axis. (c) Determine the magnitude of the Poynting vector at this location.Calculate the Hall voltage induced on a patient's heart while being scanned by an MRI unit. Approximate the conducting path on the heart wall by a wire 8.00 cm long that moves at 10.0 cm/s perpendicular to a 1.45 T magnetic field. mV
- Question 1: When an external magnetic flux through a conducting loop decreases in magnitude, a current is induced in the loop that creates its own magnetic flux through the loop. How does that induced magnetic flux affect the total magnetic flux through the loop? O It does not affect the total magnetic flux. O It decreases and then increases the total magnetic flux. OIt increases the total magnetic flux. OIt increases and then decreases the total magnetic flux. O It decreases the total magnetic flux. Part (a) Some additional information, which is not included in the video, is that the SI unit of magnetic flux is the weber, denoted Wb. Using that information and the contents of the video, solve this numerical problem: A conducting loop, with a resistance of 2.0 Q2, encloses magnetic flux that is increasing at the rate of 2.0 Wb/s. The magnitude of the current induced in the loop is... (select the best choice) Part (b) 02A 04A 01/2A O1A 01/4 A Imagine a circular conducting loop glued…The magnetic field is pointing out of the board everywhere in space.The metal bar on top of the rails is being moved by an external agentto the right. What is the direction of the induced current on the bar?4. A 12-cm by 5.0-cm rectangular loop consisting of 15 turns of 1.0-mm diameter copper wire is normal to a uniform magnetic field that is initially 24 mT into the page. X X #3 X X X X X X x X X x x A CCW current is induced in the loop, and this current begins at 4.6 mA and increases linearly to 5.9 mA after 2.0 s. Calculate the magnetic field 5.0 s later.