When a car is moved into a painting chamber, a mist of paint is sprayed around its body. When the body is given a sudden electric charge and mist is attracted to it— presto—the car is quickly and uniformly painted. What does the phenomenon of polarization have to do with this?

Q: The moving charge has a charge of q = -2.0C and is moving inside electric and magnetic fields as…

A: Magnitude of electric force can be given as follows: Fe=qEFe=2×1000Fe=2000 N Since velocity and…

Q: What is the magnitude and polarity of an object if 1000 electrons were added to it?

A:

Q: i. A free negative charge released in an electric field only will- ii. A free positive charge…

A: i) free negative charge moves opposite to electric field  Since, F = qE  ii) free positive charge…

Q: You travel to the north magnetic pole of the Earth, where themagnetic field points vertically…

A: B→.dl→=B×dl×cos90°=0B→.dl→=0 Magnetic field and dl are perpendicular so there line integral will be…

Q: a conductor with current l crosses a flat sheet of electric current k orthogonally, as shown in the…

A: Given information: The current in the wire = I The current density in the sheet = K From the above…

Q: The Fields surrounding a moving electric charge? A. Depends on the space where the charge is moving…

A: There are many applications in which the charged particle move in the existence of both magnetic and…

Q: An electron beam makes a spot at the center of the screen of a picture tube. The north pole of a bar…

A:

Q: Explain the polarization of a dielectric in a uniform electrical field?

A: Dielectrics are electrical insulators. Examples of dielectric Mica, glass, porcelain etc., They can…

Q: Is it true that for the electric field, it involves the interaction between charges at rest while…

A: A stationary charge will produce only an electric field in the surrounding space. If the charge is…

Q: In an electromagnetic experiment, a straight horizontal wire of mass 10 g and length 1 m and carries…

A:

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A: a)Equivalent resistance is,

Q: Which of the following is true? O Magnetic field exerts force only a moving charge O Magnetic field…

A: solution as

Q: Which of the following generates a magnetic field? O an electric current in a long straight wire Oan…

A:

Q: Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving…

A: The direction of the magnetic field is identified using the Fleming's left-hand rule. According to…

Q: Imagine a very long conducting wire carrying a constant steady current. Which of the following…

A: Given,  Infinite current carrying wire is given. Which field will be generated by this wire.

Q: Determine which of the following statements is true: a. Magnetic field exerts force on a charge at…

A: A magnetic field exerts force on a moving charge

Q: RELATED TO: A. CURRENT-CARRYING CONDUCTOR PLACED IN A MAGNETIC

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Q: A current traveling through a loop of wire creates a moving electric charge that is a. surrounded…

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Q: What is Electromagnetic field?

A: An electromagnetic field is a field produced by the moving electrically charged objects.

Q: A magnetic field will not apply force on. ...... a. an electromagnet O b. an electric charge moving…

A: We know that, No force is applied when electric charge moves parallel to the magnetic field.

Q: Magnetic fields differ from electric fields in which of the following manners listed below?

A: The divergence of an electric field is non zero in location of the source and is zero everywhere…

Q: Which of the following can experience a force when placed in a magnetic field? (Choose all that…

A: We need to answer which of the following can experience a force when placed in a magnetic field.

Q: In Maglev trains, fields exist between objects that are not in contact but can interact at a…

A: Required : True or False.

Q: How electric charges and fields (electric and magnetic) behave in electrostatics and magnetostaics?…

A: Introduction: Time-independent distribution of charges & fields comes under electrostatics and…

Q: Residents of northern Canada are bombarded by more intense cosmic radiation than residents of…

A: Cosmic rays possess the high energy particle that travels through space with the speed of light. It…

Q: When electromagnetic fields interact with charged particles, what happens?

A: The electromagnetic fields are the field with an electric field and magnetic fields. Thus, it…

Q: The Earth is surrounded by fields; a. The direction of the gravitational field around the earth is;…

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Q: Determine the magnitude and direction of the electromagnetic force between the two charges (43)…

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Q: Identify the direction of the net force and net torque on the electric dipole in each base. The blue…

A: SOlution: to find the net force and torqure of the dipole

Q: The more concentrated the field lines in one area the _________ the electromagnetic force.

A: The mathematical expression for calculating the electromagnetic force is : F=qE+v×B Here, F is the…

Q: Why tiny hairs on your skin, when brought closer to a newly purchased plastic cover, get attracted…

A: hairs are attracted towards the plastic cover

Q: To produce deflection in a television picture tube: A) an electric field is used B) a magnetic field…

A: The TV tube is cathode ray oscilloscope.

Q: The velocity of a charged particle to keep moving in the same direction, in a region where electric…

A:

Q: Electric charges can be associated with electric fields, magnetic fields and electromagnetic waves…

A: To match the charge particles with associated field form.

Q: What is the angle between the wire and the magnetic field?

A: Given: Force, F=1.6N Length segment of straight wire, L= 1.6N. The wire caries a current I= 3.2A The…

Q: Determine the initial direction of the deflection of charged particles as they enter the magnetic…

A:

Q: "When the two fields (i.e. electric field and magnetic field) are perpendicular to each other, they…

A: Force on charge particle in magnetic field = q v B sinθ Force on charge particle in electric field =…

Q: Since there is a relationship between electric and magnetic field, complete the statement, “An…

A: Electromagnet is a device which behaves as magnet when current passed through it

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.