Compare between dipole antenna and loop antenna.
Q: f a coil of wire is connected to a very sensitive ammeter and then waved about in the air, a current…
A: Electromagnetic Induction: Whenever there is a change in the magnetic field or magnetic flux linked…
Q: The distinction between an electric field and an electrostatic field has always seemed murky to me.…
A: The Distinction between an electric field and electrostatic field - Actually electric field is the…
Q: A disk of radius R having a uniform surface electric charge density σ is rotated on its axis with an…
A:
Q: Inductors store energy in a magnetic field created by the flow of current while capacitors store…
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Q: What two things about a magnetic field can magnetic field lines represent?
A: Solution: The magnetic field lines represent the following two things about the magnetic field -…
Q: In electromagnetic induction, explain how does the number of coils affect the current produced?
A: Induced voltage is directly proportional to the number of coils. Therefore, current produced is…
Q: What is the frequency of an EM wave that has a wavelength of 1312.46 m? Round your answer to two…
A: f = c / λ = 299,792,458 m/s / 1312.46 m = 228420.263 Hz = 228.420263 kHz
Q: :. An electron moving at the speed of 107 m/s, enters a magnetic field of induction 0.1 T at right…
A: To find-Radius of path of electron=?Given-Speed of electron (V)=107 m/sMagnetic field (B)=0.1 T
Q: Would a closed semi-circle conductor be a planar Faraday's cage
A: In this question we have to answer whether a closed semi-circle conductor be a planar Faraday's…
Q: In electromagnetic induction, how does no. of coils affect the current produced?
A: The phenomenon of Electromagnetic induction is discovered by Michael Faraday in 1831. The Law of…
Q: What is the conditions necessary for Electromagnetic Induction?
A: Electromagnetic Induction is a current generated due to a changing magnetic field due to the…
Q: The distinction between an electric field and an electrostatic field has always seemed murky to me.…
A: Explanation: Electric Field and Electrostatic Field: An electric field is one that is formed by an…
Q: What is the magnitude of magnetic flux when the magnetic field is parallel to a surface? Show…
A: Given: The magnetic field is parallel to the surface.
Q: Calculate the magnetic induction, B, of a wire that carries a current of 100 amps, at a distance of…
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Q: ▼ Part A Within the solenoid, but far from its ends, what is the magnetic field B due to the current…
A:
Q: Explain why the higher the frequency, the shorter the wavelength of an electromagnetic wave.
A: Frequency and wavelength
Q: In electromagnetic induction, explain the principle why the voltmeter behave the way we observe it?
A: The voltmeter has a large resistance. So, the low current flows in the circuit because the…
Q: According to Faraday, the electric flux density in the region between two charged spheres is not a…
A: The expression for electric flux is, ϕ=∮sE·dA=qenclosedε0 To find the flux density, assume a…
Q: If the distance between the plates of a capacitor of radius R and consisting of two opposing…
A: Given: Radius of plates = R Distance between plates, d = 5 mm Potential difference between the…
Q: As compared to electromagnetic relays, what advantages did vacuum tubes have? In what way did this…
A: Introduction: - Vacuum tubes and electromagnetic relays were two of the earliest electronic…
Q: Show why the induced current in a wire can only be flowing in a particular direction.
A: According to Lenz's law, " If there is a change in magnetic flux then current in the loop induced in…
Q: In which situation shown below will the electromagnetic wave be more successful in inducing a…
A: We know that when there is changing magnetic flux through a closed loop then current gets induced in…
Q: The angle of dip at a location in southern India is about 18°. Would you expect a greater or smaller…
A: The Earth is nothing but a giant magnetic aligned almost antiparallel with rotation (geographical…
Q: In an alternator magnets are rotated within windings of conductive wire to produce an emf, is this…
A: An alternator or AC generator is an electrical generator that converts mechanical energy to…
Q: Show that the fields E and B are orthogonal.
A: E and B are orthogonal to each other. We can understand it from Maxwell equations.
Q: At a certain place, the angle of dip is 30° and horizontal component of earth's magnetic field is…
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Q: Compared to permanent manents, is Helmholtz coil, more closer to magnet with dipoles that are…
A: Compared to permanent manents, is Helmholtz coil, more closer to magnet with dipoles that are…
Q: The hysteresis loop of a soft iron piece has a much smaller area than that of a carbon steel piece.…
A: In a hysteresis loop, the energy dissipated per cycle is directly proportional to the area of the…
Q: Show why the induced current in a wire can only be flowing in a particular direction.
A: Electromagnetic induction is the phenomenon of inducing a current in conductor placed in a varying…
Q: How would you demonstrate that a momentary current can be obtained by the suitable use of a magnet,…
A: connect the coil with galvanometer and then insert the magnet into the coil and take back , while…
Q: How to increase the output of electromagnetic without affecting the emf
A:
Q: To tune in for the right frequency of a radio station, we may have to adjust a: Group of answer…
A: in a radio tuner we use a resonant circuit .
Q: In situations where a small signal must travel over a distance,a shielded cable is used in which the…
A: Shield is necessary to avoid electromagnetic interference and leakage of signals. As the…
Compare between dipole antenna and loop antenna.
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