Suppose that when you move a magnet through a 34.5-turn coil at a certain speed, a voltage of 81.8 Volt is induced across the coil. If you move the same magnet through a 239.8-turn coil at the same speed, what voltage will be induced across the coil, assuming both coils are closely packed? The answer is  ___________V

Q: A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much…

A:

Q: 10. A circular wire coil with 10 turns and radius 1.67 cm is placed in a uniform magnetic field of…

A: The number of turns in the wire coil: N = 10. The radius of the wire coil: r = 1.67 cm (0.0167 m).…

Q: An emf of 9.7 x 10-3 V is induced in a coil while the current in a nearby coil is decreasing at a…

A: Given that,The mutual inductance of two coils is 3.6×10-3 Hwhere, ε=9.7×10-3 Vand dIdT=2.7 A/sEmf of…

Q: An emf of 0.50 V is induced across a coil when the current through it changes uniformly from 0.20 A…

A: solution is given by

Q: Two coils are placed close together in a physics lab to demonstrate Faraday’s law of induction. A…

A: If mutual inductance M then current  in one coil I will causes the flux ϕ in another coil as  ϕ=MI…

Q: P1 The switch K in the circuit shown in the figure is open, and there is no current in the coil. At…

A: The RL circuit is given:

Q: In each of two coils the rate of change of the magnetic flux in a single loop is the same. The emf…

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 step-up transformer has Np = 46 turns on the primary coil and Ns = 669 turns on the secondary…

A:

Q: Problem 3:  Consider a generator that rotates its 200 turn, 0.17 m diameter coil at 3450 rpm in a…

A:

Q: A transformer consists of 275 primary windings and 854 secondary windings. Part A If the potential…

A: A transformer contains primary and secondary coils. Windings are basically the number of turns in…

Q: A 780 loop circular armature coil with a diameter of 8.4 cm rotates at 145 rev/s in a uniform…

A: The number of loops in the coil is given as The diameter of the coil is, The angular speed fo the…

Q: A wire loop of radius 0.33 m lies so that an external magnetic field of magnitude 0.35 T is…

A: Radius of loop (r) = 0.33 m Initial magnetic field (B) = 0.35 T Final magnetic field (B') = -0.16 T…

Q: During a 58-ms interval, a change in the current in a primary coil occurs. This change leads to the…

A:

Q: A coil with a self-inductance of 2.0 H carries a current that I(1) = (2.0 A)sin 120xt. Find an…

A: Given, self inductance of coil L=2HCurrent I(t)=2sin120πt

Q: Diagram 1 R1 R3 R2 L S

A: Given: The diagram is as follows. Here, R1=8.33 Ω, R2=4 Ω, R3=1.12 Ω, L=32.2 mH, V=53.9 V…

Q: 220 V is supplied across 1200 windings of the autotransformer. If 1650 primary coil of the windings…

A: We have following given values-Voltage, V= 220 VoltPrimary Windings, N1= 1200Secondary Windings, N2=…

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

A:

Q: An iron core transformer is as shown in the figure. The primary coil has Np = 2000 turns and the…

A: The number of turns in the primary Np=2000 turns The number of turns in the secondary Ns=5000 turns…

Q: The primary coil of a transformer has 329 turns; the secondary coil has 1000 turns. An alternating…

A:

Q: A generator produces 60 A of current at 120 V. The voltage is usually stepped up to 4500 V by an…

A: Given data: Voltage in primary coil (V1) = 120 V Voltage in secondary coil (V2) = 4500 V The number…

Q: A coil has an Inductance of 50μH. What voltage is induced across the coil when the rate of change of…

A: Given, Inductance of coil, L = 50 μH rate of change of current, dIdt = 10000 As

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

A:

Q: EMF of 0.218V is induced in a coil when the current in a second coil is changing at a rate of…

A:

Q: Problem 9: Suppose a generator has a peak voltage of 285 V and its 500 turn, 5.5 cm diameter coil…

A: Given that----- E = 285 V diameter = 5.5 cm B = 0.225 T Question ? What frequency in rpm must…

Q: generator is connected across the primary coil (Np = 150 turns) of a transformer, while a resistance…

A: Transformers works on the principle of mutual induction.  Power in primary and secondary is same for…

Q: A step-up transformer has 23 turns on the primary coil and 750 turns on the secondary coil. If this…

A: Number of turns in the primary coil is Number of turns in the secondary coil is Output voltage is…

Q: In each of two coils the rate of change of the magnetic flux in a single loop is the same. The emf…

A: The emf induced in a coil is given by the equation: emf = -N(dΦ/dt) where N is the number of turns…

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.