10. A circular wire coil with 10 turns and radius 1.67 cm is placed in a uniform magnetic field of strength 8.22 T, directed perpendicular to the plane of the wire loops. Over a period of 2.29 s, the magnetic field fades away to zero. What is the average induced emf (voltage) in the coil over this period of time?     0.019 V     0.037 V     0.043 V     0.031 V

Q: 1. A loop conductor of area 1.0 m² is positioned perpendicular to a uniform 1.5 T magnetic field. a.…

A: Initial area of loop, A1=1 m2 Magnetic field intensity, B=1.5 T Final area of loop, A2=1.5 m2 Time…

Q: A car alternator produces peak output Vo to charge the car's 12 V battery. Suppose the alternator…

A: Given Data :The maximum voltage output is The diameter of coil is Revolution frequency is The…

Q: The figure below shows a 108-turn square coil rotating about a vertical axis at at = 1,570 rev/min.…

A:

Q: 4. A piece of copper wire is formed into a single circular loop of radius 12 cm. A magnetic field is…

A: Given: r=0.12m, B1=0T, B2=0.6T, t=0.45s, RL=3.3×10-2Ω/m (a) The length of the wire is equal to the…

Q: A car generator turns at 390 rpm when the engine is idling. Its 296-turn, 5.04 cm by 7.99 cm…

A: Given data, 390 (rpm); N=296-turns; rectangular coil having, a=5.04 cm, b=7.99 cm; peak emf, ε=24.4…

Q: 10. A wire has a resistance of 60.0 ohms, and is bent into a square loop with sides of length 15.0…

A: In this question we have to find the induced current in the wire. Please give positive feedback if…

Q: A coil of wire with 50 turns lies in the plane of the page and has an initial area of 0.310 m2. The…

A:

Q: A single loop of wire with an area of 0.0920 m2 is in a uniform magnetic field that has an initial…

A: The objective of the question is to find the electromotive force (emf) induced in the loop and the…

Q: 7. A rod of length, L = 10 cm is forced to move at constant speed v = 5.00 m/s along path parallel…

A: Emf is  equal to the work done per unit charge

Q: . A segment of wire 5.3 cm long is moving at a velocity of 6.68 m/s toward a parallel (much longer)…

A: Given Data:The length of the wire is The velocity of the wire segment is The current in the wire is…

Q: 36. A solenoid of length 0.75 m has a radius 0.092 m. A current of 25 A flows through its 4 700…

A:

Q: 2. An AC generator has 75 rectangular loops on its armature. Each loop is 15.0 cm long and 6.00 cm…

A:

Q: A 3.0-cm by 5.0-cm rectangular coil has 100 turns. Its axis makes an angle of 55º with a uniform…

A:

Q: 4. A metal rod moves with constant velocity along two parallel metal rails connected with a strip of…

A: We will first write an expression for motional emf, that is, emf induced due to motion of…

Q: A flexible loop has a radius of 12.0 cm and is in a magnetic field of magnitude 0.150 T. The loop is…

A: Given data The radius of the flexible loop is: R = 12 cm = 0.12 m The magnitude of the magnetic…

Q: A 3.0 -m bar moving through a uniform, 2.5 -T magnetic field with a speed of 2.0 m/s, oriented as…

A:

Q: A circular coil of 50 turns and radius 8.0 cm is placed with its plain oriented at 90ﾟ to a magnetic…

A: Given data: Number of turns in the coil, N=50 The radius of the coil, r=8.0 cm=0.08 m The angle of…

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: 4. A coil with 20 turns of wire is wrapped on a frame with a square cross section 2.50 cm on a side.…

A: The induced emf is equal to the ratio of change in flux with respect to time. ε=Nϕf-ϕit…

Q: 38. A magnetic field B= 0.6T is directed upward through a circular loop of diameter 7 cm and 500…

A:

Q: Now we know about Faraday's Law, so we will work through a problem using it. B A coil has 28 turns…

A:

Q: In the figure, a 110-turn coil of radius 2.10 cm and resistance 6.80 N is coaxial with a solenoid of…

A: Number of turns , N = 110 Radius , r = 2.1 cm = 0.021 m Resistance , R = 6.8 Ω Number of turns per…

Q: 4. A circular coil of radius 4.50 cm contains 140 loops and its plane is positioned perpendicular to…

A:

Q: An ac electrical generator is made by turning a flat coil in a uniform constant magnetic field of…

A:

Q: A coil has 20 turns each with an area of 1.5 x 10-3 m2. A magnetic field is perpendicular to the…

A:

Q: A 80-cm side length square coil has 145 turns. An initial uniform magnetic field of strength 6.5 mT…

A: Given:-             B = 6.5 mT L = 80 cm N = 145 turns

Q: 1. A single strand of wire of adjustable length is wound around the circumference of a round balloon…

A:

Q: A 105-turn square wire coil of area 0.040 m2 rotates about a vertical axis at 1,800 rev/min, as…

A: Emf induced in the coil ε=dϕdt=ddtNBAcosθ=NBAωsinθ            ω=dθdtεmax=NBAω            sinθmax=1

Q: 5. A rectangular coil of sides 7.00 cm and 16.0 cm contains 120 loops and its plane is positioned…

A:

Q: A coil with multiple loops is in a magnetic field such that the magnetic flux through the coil…

A:

Q: 9. A flat circular coil with 90 turns, a radius of 4.20 x 10 2 m, and a resistance of 0.500 2 is…

A: Number of turns in coil is N = 90 turns Radius of the coil is r = 4.20 x 10-2 m Resistance of the…

Q: A circular wire coil with 26 turns and radius 3.81 cm is placed in a uniform magnetic field of…

A:

Q: A circular loop with a radius of 2.5 m rests horizontally inside a uniform magnetic field of 0.9 T…

A:

Q: starting with the normal of the plane of the coil perpendicular to the field. Assume that the…

A: Induced emf in any generator E = Eo sinwt Where Eo = peak emf = NABW W = angular speed B= magnetic…

Q: A segment of wire 7.9 cm long is moving at a velocity of 4.75 m/s toward a parallel (much longer)…

A:

Q: A car generator turns at 390 rpm when the engine is idling. It's 296-turn, 5.04 cm by 7.99 cm…

A: Solution:-Given thatSpeed of car generator (N)=390 rpmNumber of turns (n)=296Lenght of rectangular…

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: 31. A single loop of wire of radius 0.23 m is placed in a 0.75 T magnetic field as shown. The…

A: Given:- A single loop of the radius of r = 0.23 m The magnetic field  B1 = 0.75 T The magnetic field…

Q: A circular wire coil with 25 turns and radius 1.02 cm is placed in a uniform magnetic field of…

A:

Q: A 2.5 cm radius single circular wire coil is removed from a 4.5 x 10 T magnetic field in 0.25 s.…

A: solution as

Q: 2. A circular loop consisting of a single turn of wire and a diameter of 15 cm lays flat at the edge…

A:

Q: 8 A generator consists of 10.0 turns of wire, and each turn has an area of 0.095 m*2. If a maximum…

A:

Q: The figure below shows a 117-turn square coil rotating about a vertical axis at at w = 1,460…

A: Given data: The number of turns is N=117 Rotational speed is ω=1460 rev/min. Side of square is a=20…

Q: A circular coil of 50 turns and radius 8.0cm is placed with its plane oriented at  90 degrees to a…

A: Given The number of turns in the coil is N=50 The radius of the coil is r=8.0 cm=0.08 m The angle…

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.