The drawing shows a straight wire carrying a current I. Above the wire is a rectangular loop that contains a resistor R. If the current I is decreasing in time, what is the direction of the induced current through the resistor R — left-to-right or right-to-left? If the induced current goes from left to right through the resistor, type the letters "LTR" in the box below. If the current goes from right to left through the resistor, type the letters "RTL" in the box.

Q: Two circular loops of wire lie in the same plane as shown in the figure. If the current in the outer…

A: Given Data : The current in the outer loop is given as I. The direction of the current in the outer…

Q: The plane of a square coil of wire is perpendicular to the direction of a magnetic field. The  coil…

A:

Q: In the figure above, a steady current is flowing through a very long straight wire. A square loop of…

A: Let ε denotes the induced emf, ϕ denotes the flux through the loop, t denotes the time. Therefore,…

Q: • The current I in a long, straight wire is constant and is directed toward the right as in Fig.…

A: This quetion is based on electromagnetic induction.

Q: Figure shows a circuit with an area of ? = 0.060[m2] containing a ? = 1.0[Ω] resistor and a ? =…

A:

Q: Review Cons A0.286 m -long bar moves on parallel rails that are connected through a 6.39 S resistor,…

A: The length of the rod is L=0.286 m. The resistance is R=6.39 Ω. The magnetic field is B=1.53 T. The…

Q: A rectangular loop with width L and a slidewire with mass m are as shown in figure 1. A uniform…

A:

Q: The diagram shows a rectangular loop of wire moving away (in the direction of the blue arrow) from a…

A: The given diagram shown that a rectangular loop having some resistance, are moving away from the…

Q: Two circular loops of wire lie in the same plane as shown in the figure. If the current in the outer…

A: As current in external loop is clockwise so field will be into the page due to external loop current…

Q: Shown in the figure below is a rectangle of wire immersed in a magnetic field. The rectangle has…

A: Given : l=2 m w=2 m R=7.02 ohm B(t)=5t3+2t4

Q: Consider a metal rod sliding over two horizontal metal bars as shown on the picture. The whole setup…

A: Required : The direction of the induced current.

Q: lies along z (see the figure below). A magnetic field of magnitude B is parallel to the z axis. This…

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Q: Use Lenz's law to answer the following questions Concerning the direction of induced currents. (a)…

A: The direction of the induced current and induced emf is such that it opposes the change that…

Q: What is the direction of the induced current if the field B suddenly decreases as the loop is moved…

A: Required Direction of induced current.

Q: Three circular loops of radius R (A, B and C) are placed near a long current carrying wire as shown…

A:

Q: A loop of wire in the shape of a rectangle of width w and length L and a long, straight wire…

A:

Q: A circular loop of wire rests on a table. A long, straight wire lies on this loop, directly over its…

A: Explanation: The current in the loop is zero, the flux into the loop and out of the loop is equal,…

Q: You have two single turn circular loops of wire oriented such that they have a common center and the…

A:

Q: In the figure below, a metal rod is forced to move with constant velocity along two parallel metal…

A: Dear student, this question contains more than three sub-parts. We will answer first three…

Q: For the wire arrangement in Figure 7, a =10.0 cm and b =15.0 cm. The current in the long straight…

A:

Q: An electron is fired into one end of the solenoid in (Figure 1) . Viewed along the positive x axis…

A:

Q: A circular metal ring is situated above a long straight wire, as shown in the figure. The straight…

A: With increase in current, the outward flow through the ring also increases and hence induces a…

Q: In the figure below, the magnitude of the current, I, in the long straight wire is decreasing. What…

A: Dear student The direction of induced current is given by Lenz's law. Which says that the direction…

Q: The drawing shows a straight wire carrying a current I. Above the wire is a rectangular loop that…

A: The figure is shown with the direction of Current . To find = What is the direction of induced…

Q: (Figure 1) shows a 11-cm-diameter loop in three different magnetic fields. The loop's resistance is…

A:

Q: Two concentric circular coils of wire lie in a plane. The larger coil has 42 turns and a radius of a…

A: Write the given values of this problem. N1=42 turnsa=9.20 cmN2=4 turnsb=0.25 cmt=2 s

Q: In the figure, the red circle represents the loop of a wire. An external constant magnetic field is…

A: Given Applied external magnetic field is  constant .       B = constant  Let area of the loop is…

Q: The drawing shows a straight wire carrying a current I. Above the wire is a rectangular loop that…

A:

Q: in the figure below, a square loop with 10 turns that is 10.0 cm on a side has a magnetic field…

A:

Q: The long solenoid S shown (in cross section) in Figure 9 has 220 turns/cm and carries a current I =…

A: N=Number of turns=130n=Number of turns per unit length=220 turns/cmd=Diameter of coil=2.1…

Q: A metal bar of length L = 2.8 m slides along two horizontal metal rails as shown in the figure…

A:

Q: 2. The loop of wire in the diagram below forms an equilateral triangle 20 cm on a side. (a)What is…

A:

Q: In Ampere's law PB-dl=µl, which of the following statements is incorrect: Select one: O Bis the…

A: Ampere's circuital law states the relationship between the current and the magnetic field created by…

Q: A loop of wire is moving near a long, straight wire carrying a constant current I as shown in the…

A:

Q: You are evaluating the performance of a large electromagnet. The magnetic field of the electromagnet…

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Q: Experimentally, the magnetic flux ΦB in a solenoid was measured for various currents ?. The data was…

A: Given data The current at the first point is given as I1 = 0.750 A. The current at the second point…

Q: The square conducting loop shown in the figure lies in the x-y plane. The loop is in a uniform…

A: Rate of decrease of magnetic field=dBdt=-5.9T/s Resistance offered by Loop=97.7Ω Length =3.4m

Q: Using the following diagrams, show the directions [in Figure] of (1) Induced Magnetic Field (Band)…

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Q: The figure below is a top down view of a circular wire coil with rotating clockwise in a uniform…

A: This question can be solved by using the concept of Faraday's law , Lenz law and the force on a wire…

Q: A circular loop of wire is placed in a uniform magnetic field pointing directly into the page, as…

A: Here we have to use farady law to find the induced emf and to find the direction we use lenz law.

Q: For the circuit below, A = 0.1 m2 shown below, with 10 loops is positioned in a (Bi) 0.500 T…

A: Faraday's law of induction states that the magnitude of the emf induced in a coil due to changing…

Q: In the above figure, a conducting rod is shown moving to the right along U-shaped conducting rails.…

A: Concept As the conducting rod is moving to the right along the U-shaped conducting rails, the area…

Q: A loop of wire has the shape shown in the drawing. The top part of the wire is bent into a…

A:

Q: A long piece of wire is bent into a rectangular loop and placed on a table top in the horizontal…

A: Given:- d = 2.50 cm a = 17.4 A b = 1.78 A/s2 ℓ = 0.500 m w = 0.250 m To find:- E= Emf induced at…

Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.