An induced EMF of 16 V exists in a coil when the current in the coil changes at a rate of 42 A/s. What is the self- inductance of the coil?
Q: 14) How fast is a particle going when the magnetic field is 1.75-T and thecharge is 2.95 e -15-C…
A: given data, Magnetic field , B = 1.75 T charge , q = 2.95 e-15 C =2.95×10-15 C Force , F = 1.65 N
Q: How recycling centers use eddy currents and magnetic damping to separate metals from other…
A: In recycling centers, the mixture of metals and non metals substances are made to move down/fall…
Q: HOW DOES THE MAGNETIC FIELD STRENGTH 'B' RELATED WITH CURRENT IN THE COIL 'I'. O NONE OF THESE NO…
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Q: (I) A transformer is designed to change 117 V into13,500 V, and there are 148 turns in the primary…
A: Vp =117 V Vs = 13,500 V Np =148
Q: O A negative chare is movina Straight out of the Page. what is the direcion of the maqnetic Sield at…
A: 7) The force on a negative charge is in exactly the opposite direction to that of a positive charge.…
Q: Question A piece of germanium, as illustrated in figure 4, contains 2.3 x 101⁹ charge carriers per…
A: We can draw the figure (4) as following. Let magnetic field is along z axes and the current is along…
Q: hysterisis? f
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Q: 12) A 20 cm di ameter and 20 turn circul ar coil is located in the yz-plane, and each wire of the…
A: Given, Diameter d= 20 cm= 0.2m radius r= 0.1m turns N= 20 Current I = 2A
Q: .. If full scale of deflection is obtained in galvanometer of resistance 99 ohms by passmg a current…
A: Given data: - The resistance in the galvanometer is Rg = 99 Ω. The current passing through the…
Q: Find, using Ampere's law, the magnetic field produced when a steady current of constant strength and…
A:
Q: (II) A horizontal compass is placed 18 cm due south froma straight vertical wire carrying a 48-A…
A: The magnetic field produced by the current carrying wire is given by, B=μ0I2πr Here, μ0 is the…
Q: what is mutual induction?
A: firstly we understand what is iduction ? due to change in magnetic flux an emf (electromotive force)…
Q: 4. For a coil with a Diamitor of .3m , 10 turns, and 2 amps of curren Find the magnetic field at the…
A: We know that magnetic field at the center of a coil B = μ0 N I2R WHERE R=0.3/2= 0.15 m N=…
Q: (I) Neon signs require 12 kV for their operation. To operatefrom a 240-V line, what must be the…
A: The ratio of secondary to primary turns of the transformer can be obtained as…
Q: (I) A step-up transformer increases 25 V to 120 V. What isthe current in the secondary coil as…
A: primary voltage, Vp = 25 V secondary voltage, Vs = 120 V
Q: State the effect of the number of coils of wire on the number of thumbtacks picked up.
A: The above effect can be described of that of a solenoid. The combination of an iron-nail wrapped up…
Q: I used the right hand rule for conventional current, and my fingers curl left (west) not in east…
A: We will first understand how the magnetic field lines orient around a current carrying conductor…
Q: How a step down transformer works?
A: A transformer is a device which can converts the high voltages into the low voltages.
Q: What we can caonclue by observing a current carrying wire deflects a compass needle place near it.
A: The compass needle is used to detect the direction of magnetic field.
Q: The ends of a metal bar rest on two horizontal north-south raiis as shown above The bar mav shde…
A:
Q: olai Tesla and Th
A: The war current: It is known about Nikolai Tesla, the inventor of AC current and wireless power…
Q: (a) In magnetic recording what is the magnetic ‘trilemma’? (b) Why is this a general problem for…
A: The question asks for anExplanation of the magnetic "trilemma" in magnetic recording technology and…
Q: So lenoid coil long , nomber of wire wrapped 0.2 100 turns the size of magnefic field af the centeY…
A: Given data: Length of solenoid (L) = 0.2 m Number of turns (N) = 100 Magnetic field at center (B) =…
Q: When is the force a wire carrying current the greatest? When is the force at 0?
A: Force on a current carrying conductor
Q: A transformer has 200 turns more in the secondary than in the primary. Its input and output voltages…
A: From question,Number of turns in primary coil: NpNumber of turns in secondary coil: Ns=Np+…
Q: Why does an induced current always oppose the change that makes it?
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Q: To induce a current in a wire coil, a magnet must be spinning at rest moving O strong
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Q: Consider a solenoid of length 0.1 m, having 361 loops . What current is necessary to produce a 2.5 T…
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Q: What is the maximum torque on a 125-turn square loop of wire 15.0 cm on a side that carries a 60.0-A…
A: The given wire is a square loop having a side length of 15 cm, carrying a current of 60 A. Since…
Q: If you move a bar magnet in the space near a coil of copper, what does this motion cause in the coil…
A: When magnet moves near the copper coil, there is flux change in the copper coil due to…
Q: Affect of increasing current on magnetic field (keeping no. of turns constant).
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Q: The time peniod of do. freely suepender dipend! magnet not
A: Concept used: We consider magnet to be suspended by a vertical suspension thread. Time period of a…
Q: A galvanometer is connected to a hollow helical coil of wire as shown in the figure below. An…
A: Electromagnetic induction is the phenomenon of the production of electric current in a coil due to a…
Q: Cite at least 5 practical applications of magnetic flux in our everyday livin
A: Magnetic flux is an important term in the field of physics and electronics. It is defined as the…
Q: Show the net force on a loop of current in the presence of external magnetic field is zero.
A: Given:- Show the net force on a loop of current in the presence of an external magnetic field is…
Calculate ''L; of the coil.
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