n turns/m I R 0000000Go0000000000000 N turns Figure P30.4

Q: 11. Suppose that the coil illustrated below has a length of L = 20.0 m, a radius of r = 1.00 m, N =…

A:

Q: A rectangular wire loop with length a and width b lies in the xy-plane, as shown below. Within the…

A: Given: A rectangular wire loop with length a and width b lies in the xy-plane, as shown below,

Q: A solenoid with 1200 turns per meter has a diameter of 2.00 cm. A current I = 2.40 A flows in the…

A:

Q: A rectangular loop of area A=0.160 m2 is placed in a region where the magnetic field is…

A: A = 0.160 m2 B = 0.403e-t/2 t = 4.5 s = ?

Q: Suppose that a rectangular toroid has 2,000 windings and a self-inductance of 0.060 H. If the height…

A: The energy stored in an inductor is, U=12LI2

Q: A long solenoid has n = 400 turns per meter and carries a current given by I = 30.0(1 −e−1.60t),…

A: No. of turns per unit length, n = 400 turns/meter Current, I = 30(1-e-1.60t ) Radius , r = 6 cm =…

Q: A rectangular loop (area =0.15 m2) turns in a uniform magnetic field,B = 0.20 T.When the angle…

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Q: A solenoid with 1200 turns per meter has a diameter of 2.00 cm. A current I = 2.47 A flows in the…

A:

Q: A physics student notices that the current in a coil of conducting wire goes from / = 0.200 t 2 1.50…

A: induced emf is given by ∈=-Ldidt=-Li2-i1t2-t1t2-t1=0.250 seci2=1.50 Ai1=0.200 AL=3 mH=3×10-3 H

Q: A 48 turn conductive loop encloses an area of 71 m 2 At what constant rate should the magnetic field…

A: Given, Number of turns N = 48  Area A = 71m2 emf ε=3.58 Volts   We know the expression for induced…

Q: A coil consists of 80 turns of wire. Each turn is a square of side d = 40 cm, and a uniform magnetic…

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Q: A coil of 15 turns and a radius of (R=10.0) cm surrounds a long solenoid of radius 2.00 cm and 1194…

A: The coil =15turns  The radius R=10cm  long solenoid radius =2cm

Q: The conducting rod shown in the figure has length L and is being pulled along horizontal,…

A:

Q: In the figure below, the magnetic flux that crosses the indicated turn decreases with time according…

A: Given :- magnetic flux  ϕ = 4t2+2t weber

Q: A physics student observes that the current in a coil of conducting wire goes from i, = 0.200 A to…

A: Given: Inductance L = 4mH or 0.004 H                               i1= 0.200 A…

Q: A 490-turn solenoid, 30 cm long, has a diameter of 3.5 cm. A 15-turn coil is wound tightly around…

A: Initially, the current in the solenoid is zero. Therefore, the initial magnetic field will be zero.…

Q: An eight-turn coil is tightly wrapped around the outside of the long solenoid as shown below. The…

A: The Faraday’s laws for solenoid says, Here, N is the number of turns in coil; ϕ is the magnetic…

Q: Consider a wire loop of area A = 1m? initially far from any sources of magnetic field. A strong bar…

A: Given, Area(A)=1m² Magnetic field (B)=1T Time(T)=0.1s Induced emf(E)=?

Q: 5. A long straight wire is parallel to one edge and is in the plane of a single-turn rectangular…

A: Given Data: The maximum current in the loop is, I0=25 A The magnitude of angular velocity is, ω=100π…

Q: In a 250-turn automobile alternator, the magnetic flux in each turn is P = 2.50 × 10-4 cos wt, where…

A: Introduction:The equation for induced emf is given as:ε = -NdϕBdt   -1Here, N are the number of…

Q: A small loop of area A = 7.6 mm2 is inside a long solenoid that has n = 927 turns/cm and carries a…

A: Answer:-  Given  Area (A) = 7.6 mm2 = 7.6 × 10-6 m2  Number of turns per unit length (n) = N/L = 927…

Q: long piece of wire is bent into a rectangular loop and placed on a table top in the horizontal…

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Q: A circular coil of wire 7.8 cm in diameter has a resistance of 1.61 2. It is located in a magnetic…

A:

Q: What is the induced emf in the coil as a function of time for this angular speed

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Q: A rectangular loop of area A=0.160 m2 is placed in a region where the magnetic field is…

A: The induced emf is given by the rate of change of magnetic flux.  The magnetic flux is given by  ϕ=…

Q: A rectangular loop of area A=0.160 m2 is placed in a region where the magnetic field is…

A: Given : Area=A=0.16 m2 Magnetic Field=B=0.387e-t/2 t=4.5 s In this question we have to find the…

Q: A ten-loop coil having an area of 0.23 m^2 and a very large resistance is in a 0.047 T uniform…

A:

Q: A rectangular loop (area = 1.4 m²) turns in a uniform magnetic field, B = 1.3 T. When the angle…

A: Given Data:- Area of the loop is A=1.4 m2 Magnetic field is B=1.3 T Angle between the magnetic field…

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: The flexible loop in Figure has a radius of 20.6 cm and is in a magnetic field of magnitude 0.150 T.…

A: Given Time =t=0.2 sec Radius =r=0.206 m B=0.15 T Now wire us stretched to A,B so Area =0 ThusA2=0…

Q: A rectangular loop of area A=0.160 m- is placed in a region where the magnetic field is…

A: A=Area=0.16 m2B=Magnetic field=0.361e−t/2

Q: A conducting circular loop of wire with radius 0.0300 m and resistance 0.40 Ω sits in a region of…

A: Magnetic flux passing through a loop  is given by  ϕ=∫B→.da→=∫B.da Since magnetic field B and area…

Q: A coil with an inductance of 2.6 H and a resistance of 8.2 Ω is suddenly connected to an ideal…

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Q: A charged capacitor and an inductor are connected at time t = 0. In terms of the period T of the…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…

Q: A 52-turn coil with an area of (5.5*10^-3)(m^2) is dropped from a position where B = 0.00 T to a new…

A: The Magnetic field exerts a magnetic force on the moving charges and the current-carrying wires. The…

Q: A constant uniform magnetic field of 0.50 T is applied at right angles to the plane of a flat…

A:

Q: solenoid with 1200 turns per meter has a diameter of 7.00 cm. A current I = 2.35 A flows in the…

A:

Q: The conducting rod shown in the figure has length L and is being pulled along horizontal,…

A: Given: The length of rod is L=7.9 m. The speed of the rod is v=4.3 m/s. The magnetic field is B=1.2…

Q: A rectangular loop of area A=0.160 m is placed in a region where the magnetic field is perpendicular…

A:

Q: A conducting rod is pulled horizontally with constant force F = 5.00 N along a set of rails…

A: F=5 N. d=0.56 m. B=0.6 T. V=4 m/s

Q: A 2-turn planer loop of flexible wire is placed inside a long solenoid of n turns per meter that…

A: The emf induced in the loop. given,no. of turns per unit length(n)=500 m-1maximum Current(Io)=20…

Q: A rectangular loop of area A=0.160 m2 is placed in a region where the magnetic field is…

A: The magnetic field's magnetic force on the moving charges, current-carrying wires. The moving charge…

Q: Consider a coil with an area of 0.1 m2 and 17 turns placed in a magnetic field that is perpendicular…

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Q: A coil with radius 4.00 cm contains 500 turns, and is placed in a uniform magnetic field that varies…

A: According to the faraday's law of electro magnetic induction  The rate of change of magnetic flux is…

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.