E = NBAW sin(wt) %3D Thus Emax NBAW %3D You are given: N: number of turns B: magnetic field = 5x105 T A = L? (in m?) and W = 2f %3D where the frequency of rotation is given in Hz

Q: Suppose the 50 turn coil in the figure below lies in the plane of the page and originally has an…

A: Given:no of turns, n = 50Initial area, Ai = 0.270 m2Final are, Af = 0 m2Time taken, t = 0.1…

Q: = 5. The magnetic flux through the loop increases according to the relation B 6.0t² + 7.0t as show…

A: Given:-  The magnetic flux is ϕB = 6.0t2+7.0t here t is in second and ϕB is in milliweber Find:-…

Q: If an alternator coil is 13 cm in diameter and is spinning at 1150 revolutions per minute in a 0.13…

A: Using Faraday’s law, the emf induced is,

Q: Vhat is the direction of the induced current? Α B (outward) vat O A. clockwise O B. counterclockwise…

A: Q4) The direction of induced current in the shown loop is clockwise. Explanation: As the conductor…

Q: "A single loop of wire of area 0.1 m2 is placed perpendicular to a magnetic field of intensity 2 T,…

A: Area of single loop of wire (A) = 0.1 m2Magnetic field intensity (B) = 2 T time taken to reduce the…

Q: What is the peak emf generated by rotating a 1000-turn, 20.0 cm diameter coil in the Earth’s…

A:

Q: A 28-turn circular coil of radius 4.20 cm and resistance 1.00 N is placed in a magnetic field…

A:

Q: Suppose the long solenoid in the given figure below has 900 turns per meter and cross-sectional area…

A: Given: Number of turns in solenoid, n = 900 /m Cross sectional area, A = 5.5cm2 = 5.5 X 10-4 m…

Q: To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest as…

A: GivenNumber of turn in coil, N=195 turnIncrase in coil area, A=45 cm2Magnitude of Earth's magnetic…

Q: To construct an ac generator having an output of 15 V maximum when rotated at 50 Hz, a uniform…

A:

Q: A 75-turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 rad/s in a 1.25 T field,…

A: a. peak emf is

Q: A long solenoid has n = 450 turns per meter and carries a current given by I = 26.0(1 - e 1.60t ),…

A: Given,  I = 26.0(1 − e−1.60t ) A, n = 450 turns per meter, we have, the magnetic field inside the…

Q: A coil of 1000 turns encloses an area of 25 cm2 . It is rotated in 0.010 s from a position where its…

A:

Q: A bicycle generator rotates at 1500 rad/s, producing an 21.0 V peak emf. It has a 1.30 by 3.50 cm…

A: We have Length of the rectangular coil, L=1.30×10-2m The breadth of the coil, B=3.50×10-2m E0=21.0V…

Q: A square coil of side 4 cm and 200 windings initially lies perpendicular to a magnetic field of 4.0T…

A:

Q: A 90-turn square coil constructed from aluminum wire is placed in a uniform 1.05-T magnetic field…

A: According to Faraday law  Induced emf is rate of change of magnetic flux.

Q: The figure below shows a flexible loop of metal wire with a radius of 13.0 cm. It lies in a magnetic…

A: Write a given value of this question. r=13cm=0.13mB=0.140Tdt=0.240sθ=0°

Q: A long solenoid has n = 370 turns per meter and carries a current given by I = 34.0(1 - e-1.60t ),…

A:

Q: A long solenoid has n = 420 turns per meter and carries a current given by I = 33.0(1 - e-1.60t ),…

A: Determine the magnetic field in the solenoid as follows. B=μ0nI=4π×10-7…

Q: A circular loop in the plane of the page/screen lies in a 0.65T magnetic field pointing into the…

A:

Q: A 75 turn, 8.5 cm diameter coil of an AC generator rotates at an angular velocity of 8.5 rad/s in a…

A: Since you have asked multiple subparts, we will solve the first three for you. If you want a…

Q: A 65 turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 rad/s in a 1.40 T field,…

A: Answer:-  Given  Magnetic field (B) = 1.40 T  Diameter (d) = 10 cm  Radius (r) = 10/2 = 5 cm = 0.05…

Q: An emf is induced by rotating a 1090 turn, 20.0 cm diameter coil in the Earth's 4.80 x 105T magnetic…

A:

Q: A bicycle generator rotates at 1,975 rad/s, producing a 17.5 V peak emf. It has a 46-turn, 1.00 by…

A:

Q: A coil with 115 loops and area 0.0120 m^2 rotates at 60.0 Hz through a B field of 0.125 T. What is…

A:

Q: A long solenoid has n = 370 turns per meter and carries a current given by I = 35.0(1 - e1.60t ),…

A: GIVEN  Turns in the solenoid n = 370 Current (I )= 35 ( 1- e -1.6t ) Radius R = 6 cm N = 250  To…

Q: If the magnetic flux through a coil of wire with 300 turns changes from + 5.0 Wb to - 10.0 Wb in a…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Q1. The magnetic flux passing perpendicular to the plane of the coil directed into the paper is…

A:

Q: An emf is induced by rotating a 1447 turn, 20.0 cm diameter coil in the Earth's 5.53 x 10-5 T…

A: Given that, Number of turns is 14447 and Magnetic field of Earth is 5.53*10^-5T and time is 10ms.…

Q: 20.2  The flexible loop in the figure below has a radius of 15 cm and is in a magnetic field of…

A: The radius of the loop,

Q: A bicycle generator rotates at 1,800 rad/s, producing a 15.5 V peak emf. It has a 45-turn, 1.00 by…

A:

Q: To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest as…

A:

Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.