Galvanometer Coil I=0 N Stationary (a) (b) (c) (d) (e) Figure 23.4 Movement of a magnet relative to a coil produces emfs as shown. The same emfs are produced if the coil is moved relative to the magnet. The greater the speed, the greater the magnitude of the emf, and the emf is zero when there is no motion.

Q: A conducting loop of wire is placed in a magnetic field that is normal to the plane of the loop.…

A: It is given in the question that induced current in the loop should be zero. According to Ohm's Law:…

Q: Calculate the induced electric field in a 50-turn coil with a diameter of 15 cm that is placed in a…

A:

Q: A square, 40-turn coil 10.0 cm on a side with a resistance of 0.720 Ω is placed between the poles of…

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

Q: A 10 H inductor carries a current of 20 A., the magnetic field of the inductor? Latent heat of ice…

A:

Q: You have a hand-crank generator with a 100-turn coil (each turn having an area of 0.0250 m2), which…

A: Number of turns (N) = 100 Area (A) = 0.025 m2Magnetic field (B) = 0.04 T rotational speed of crank =…

Q: A device called a flip coil can be used to measure the earth’s magnetic field. The coil has 100…

A: Given Data: The number of turns is, N=100 The area of a coil is, A=0.010 m2 The eath's magnetic…

Q: 18) A bar magnet is pushed through a coil of wire of cross-sectional area 0.020 m² as shown in the…

A: Given : Area (A) = 0.020 m2 Number of turns (N) = 7 Rate of change of strength of magnetic field :…

Q: A 100-turn square coil of side 20.0 cm rotates about a vertical axis at 4.8 x103 rad/min as…

A: Number of turns = N = 100 Side of the square coil = 20 cm = 0.2 m Area of the coil = A = 0.04 m2…

Q: A strong electromagnet produces a uniform magnetic field of 1.60 T over a cross-sectional area of…

A:

Q: A generator has a 0.054 T magnetic field and a coil with  51 turns each with an area of 0.218 m2..…

A: Given: The strength of the magnetic field is 0.054 T. The number of turns is 51. The area of the…

Q: Consider that the energy of the magnetic field inside a coil with a DC current is equal to 0.5 J.…

A: The DC current =0.5J  The magnetic flux through the coil 2.3Wb  To find the electric current flowing…

Q: Two generators use the same magnetic field and operate at the same frequency. Each has a single-turn…

A:

Q: A loop with a resistance of 4.0Q is pushed to the left at a constant speed of 2.0 m/s by a 24 N…

A:

Q: A square coil of resistance 4 Ω, 50 turns and side length 5 cm is placed with its plane making an…

A:

Q: In which of the given cases, the induced current in the loop will not be obtained A. The loop and…

A: According to Faraday's law, an Emf is produced across a conductor when the magnetic flux is…

Q: A metal loop has an area of 0.100 m2 and is placed flat on the ground. There is a uniform magnetic…

A:

Q: Consider that the energy of the magnetic field inside a coil with a DC current is equal to 0.7 J.…

A: The given data are listed below with suitable variables. Here, E denotes the energy of the magnetic…

Q: A generator consists of few turns of wire, and each turn has an area of 0.085 m2. If a maximum e mf…

A: Given Data : The area of each turn is given as A=0.085 m2 The maximum EMF generated in the generator…

Q: magnetic flux through each turn of the coil

A:

Q: A 100-turn square coil of side 20.0 cm rotates about a vertical axis at 4.9 x103 rad/min as…

A: Faraday's law of induction states that an emf is induced in a coil when there is a change in the…

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: Which of the statements describes how a motor works?  option a. A motor works by electrical energy…

A:

Q: You

A: Wire of the length for making a square coil of dc motor ( L )=1.8 m Current in the coil ( I ) =2.0 A…

Q: Calculate the induced electric field (in V/m) in a 42-turn coil with a diameter of 19 cm that is…

A:

Q: what is the magnitude of the magnetic flux through one turn of the coil before it is rotated A coil…

A: Before rotating plane of ring is perpendicular to the magnetic field. So area vector is along the…

Q: generate

A: If the strength of the magnetic field is also increased then the wire moves through a stronger…

Q: The diagram shows a magnet and a coil of wire that is not carrying current. According to Lenz's law,…

A:

Q: [VI] According to Lenz's law the direction of an induced magnetic field in a coil of wire will: O…

A: ANSWER :- The direction in which the induced emf drives current around a wire loop can be found…

Q: 9) A conducting bar moves along frictionless conducting rails connected to a 4.00- resistor as shown…

A:

Q: When a magnet is passed through a conducting wire coil, the changing magnetic flux will induce

A: Answer  A    an electromagnetic force in the coil.

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 100-turn square coil of side 20.0 cm rotates about a vertical axis at 2.8 x103 rad/min as…

A: The maximum induced emf is 3.73 mV.

Q: A strong electromagnet produces a uniform magnetic field of 1.60 T over a cross-sectional area of…

A: Answer:-  Given  Magnetic field (B) = 1.60 T  Area(A) = 0.270 m2  Number of turns of the coil(N) =…

Q: A circular coil with a diameter of 12.75 cm is made up of thin wire wound into 445 turns. It is…

A: Given  Diameter = 12.75 × 10-2 m  Number of turn N = 445  Rate of change of magnetic field = dB/dt =…

Q: A metal rod is pulled along two frictionless, conducting rails in a magnetic field. The rod and…

A: Answer               Yes, clockwise

Q: A circular coil with 65 turns and radius 18.0 cm is placed around an electromagnet that produces a…

A:

Q: A 100-turn square coil of side 20.0 cm rotates about a vertical axis at 1.6 x10 rev/min as indicated…

A: Data Given ,  No. Of turns ( N ) = 100 Side of the coil ( l ) = 20 cm = 0.2 m So , area of the coil…

Q: Suppose you have a coil with 200 turns. You take a bar magnet and move it towards the coil over the…

A: Lenz's law says that induced current in a loop is due to the change in magnetic field in the loop…

Q: A 40-turn coil has a diameter of 13 cm. The coil is placed in a spatially uniform magnetic field of…

A:

Q: patient comes in for an MRI and is placed within a strong magnetic field. For safety reasons, the…

A:

Q: A 20 turn circular loop with diameter 3 cm is placed in a magnetic field of strength 7 T such that…

A: The equation for the induced emf is given by, The change in flux is given by,

Q: If an iron core is placed inside this coil, considering a 10A current flowing in the 4 turn coil,…

A:

Q: A car has a vertical radio antenna 1.05 meters long. The car travels at 5.80 m/s on a horizontal…

A: The expression for the magnitude of induced emf is ε=vBlsinθ θ is the angle between the direction of…

Q: A strong electromagnet produces a uniform magnetic field of 1.60 T over a cross-sectional area of…

A: If magnetic flux linked with a coil changes ,then emf get induced in it. If coil is closed ,then…

Q: A 100-turn square coil of side 20.0 cm rotates about a vertical axis at 4.8 ×103 rev/min as…

A:

Q: Calculate the induced electric field in a 59-turn coil with a diameter of 15 cm that is placed in a…

A: Given: The number of turns is 59. The diameter of the coil is 15 cm. The initial magnetic field is…

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.