B. B Figure 23.54 A circular coil of wire is stretched in a magnetic field.

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A:

Q: To construct a nonmechanical water meter, a 0.470 T magnetic field is placed across the supply water…

A: (a)Given∗The magnetic field supply to water pipe is B=0.470T∗ the Hallvoltage is ε=55mV…

Q: A loop of is lying in the horizontal plane with a magnetic field directed upward through the loop.…

A: Direction of magnetic field = upwards Position of loop = placed in the horizontal plane Strength of…

Q: In the rainy season, the Amazon flows fast and runs deep. In one location, the river is 23 m deep…

A: Given:                  l=23           v= 4 m/s           B= 50 μT Using these given data we will…

Q: Determine the magnetic induction at pin A in the figure for the conductor of electric current shown…

A:

Q: (a) A 12.0 m long, thin, uniform steel beam slides south at a speed of 27.0 m/s. The length of the…

A:

Q: Circular wire coils with a diameter of 0.64 m are made up of 30 turns. In 0.40 s, it is turned 180…

A:

Q: Some electronic devices such as phones and watches can be charged wirelessly. In the charger, there…

A:

Q: 6. A rod slides along conducting rails which are connected to a resistor (R=2 N). The length of the…

A: a) value of induced emf = 4.35V b) magnitude of induced current = 2.175 A and direction is…

Q: A circular loop of wire is placed in a uniform magnetic field pointing directly into the page, as…

A: r=1 mR=10ΩA=πr2=π m2∆B=2-0=2 T∆t=5 s

Q: An emf is induced by rotating a 1000-turn, 20.0 cm diameter coil in the Earth’s 5.00×10−5 T magnetic…

A:

Q: The magnetic field at the earth’s surface can vary in response to solar activity. During one intense…

A: Canada is in northern hemisphere. The vertical component of the earth's magnetic field in northern…

Q: A flat coil enclosing an area of 0.10 m2 is rotating at 60 rev/s,with its axis of rotation…

A: Let the angular velocity of the rotating coil be denoted by ω. Let the area of the flat coil be…

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A: Given, Initially ring is in low magnetic field , Bi = 0 magnetic field in the scanner, Bf = 2.00 T…

Q: (a) An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A: a) The Faraday’s and Lenz’s Law, The magnetic flux,

Q: Determine the magnetic induction at point A in the figure for the conductor of electric current…

A:

Q: An emf is induced by rotating a 1000-turn, 20.0 cm diameter coil in the Earth’s 5.00 x 10-5 T…

A: Number of turns, N = 1000 diameter, d = 20 cm  radius, r =  10 cm = 0.1 m magnetic field, B = 5 x…

Q: Irrigation channels that require regular flow monitoring are often equipped with electromagnetic…

A:

Q: When a magnet is thrust into a coil as in Figure 23.4(a), what is the direction of the force exerted…

A: When a magnet is driven into a coil, an emf is produced in the coil owing to the changing magnetic…

Q: A 2.00-m length of wire is held in an east–west direction and moves horizontally to the north with a…

A: The length=2.00m  The magnitude =50.0mT

Q: Suppose a 57-turn coil lies in the plane of the page in a uniform magnetic field that is directed…

A:

Q: A certain elastic conducting material is stretched into a circular loop of 12.0 cm radius. It is…

A: The equation for the emf induced is

Q: The square amature coil of an altemati ng current generator has 200 turns and is 20.0 cm on side.…

A:

Q: 23) ies in the x-y plane. A spatially uniform magnetic field points in the z direction. The field…

A: No of turns N = 20 turns Side of square loop a = 10 cm = 0.1 m Area of square loop = a² = 0.01 m²…

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A:

Q: A loop of copper wire is placed in a magnetic field B with its plane at right angles to the field.…

A:

Q: uring a transcranial magnetic stimulation (TMS) treatment, a magnetic field, typically of magnitude…

A:

Q: 27. Figure 23.59 A coil is moved into and out of a region of uniform magnetic field. A coil is moved…

A: In the coil A, there is no magnetic field so there is no current. Hence no force on the coil.

Q: A conducting bar of length l moves to the right on twofrictionless rails, as shown in Figure P20.30.…

A: part A:

Q: A circular loop in the plane of a paper lies in a 0.85 T magnetic field pointing into the paper. The…

A:

Q: Calculate the Hall voltage induced on a patient's heart while being scanned by an MRI unit.…

A:

Q: Considerable scientific work is currently under way to determine whether weak oscillating magnetic…

A:

Q: (a) A 17.0 m long, thin, uniform steel beam slides south at a speed of 29.0 m/s. The length of the…

A:

Voltage Across Inductor

An actor is a passive electrical component that consists of a coil bent in the form of wire which uses electromagnetism to produce electric current through the coil. When the electric current flows through a conductor that is the coil, a magnetic flux is developed around the conductor. This flow of current through the coil creates a magnetic field based on Fleming's Right-hand thumb rule. If there is any decrease in the current passing through the inductor, then the magnetic field will also decrease and energy is released through the generation of electric current. There is also a secondary voltage inducing in the same coil due to the magnetic flux, since it opposes any changes in the electric current flowing through the circuit. An inductor is also called choke, coil, or solenoid. A choke is designed to block certain frequencies when the DC current passes. A winding coil is coated with insulation to give extra insulation and protect the circuit. They are usually tightly wrapped around a central core which is cylindrical in nature so that the magnetic flux can be induced. The solenoid is a three-dimension coil that is used to exhibit electromagnetism when the magnetic field is developed due to the current flowing through the coil. The sign convention of the inductor is the same as the power dissipating device. When the current flows into the positive side of the voltage across the inductor, the value is positive and the inductor dissipates power whereas when the inductor releases the power back to the circuit, the current has a negative sign convention.