ORIGINAL #1 #2 #3 #4 %23

Q: The sketches below show a circular coil and a permanent magnet; the arrows indicate both the…

A: The magnetic field can be altered by the movement of a magnet to produce electromotive force in a…

Q: In the following figures, each conductor carries 2.0 A of current into or out of the page. Draw a…

A: The above problem can be solved by using Ampere's Circuital Law.  According to this law

Q: A voltage of 2.4 V is induced in a coil when a magnet is pushed inside it. if the number of turns of…

A: according to lenz law the emf induced in a coil  is given by  emf=−NΔΦ/Δt ΔΦ/Δt =  rate of change in…

Q: A solenoid with an inductance of 14 mH is charged up from an initial current of 3.0 A to a current…

A: Given data:  Inductance (L) = 14 mH = 14×10-3 H Initial current (Ii) = 3.0 A Final current (If) =…

Q: 3. A wire is moving on frictionless rails in a uniform magnetic field, as shown to the right. The…

A: We have a wire of length L=5 cm=0.05 m which is moving along a rail experiencing a magnetic field of…

Q: b. Find the emf induced in the loop by using the general form of Faraday's Law Vemf c. Calculate the…

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Q: 1. The circuit of the figure below is a square 20 cm on a side. The magnetic field increases…

A: Induced emf = rate of change of magnetic flux

Q: A magnet is moving toward a solenoid and a potential difference is induced between the two ends of…

A: a) if the speed of magnet is increased induced emf will increase because rate of change of flux will…

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: 1) A circuit is placed in a uniform magnetic field that points into the page as shown. The magnetic…

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Q: the figure shows two concentric conducting rings. If there is a clockwise current I in the larger…

A: There is current in clockwise direction in the larger ring that is decreasing with time.

Q: The figure attached shows a resistor that is connected in a circuit consisting of a circular loop…

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Q: What would change when the orientation of the magnet is reversed?  I. Direction of the induced…

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Q: When is the circuit purely magnetic? A. When fully charged B. When capacitor is fully…

A: The circuit consists of a capacitor and an inductor.Write the expression for the energy stored in…

Q: he electromagnet to the other

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Q: When a conducting rod of length L is moved along the wire rails through a uniform magnetic field (B)…

A: To Find :  direction of induced current

Q: A transformer has 20 turns of wire in its primary coil and 50 turns of wire in its secondary coil.…

A: Given data:  Number of turns in primary coil (N1) = 20 turns Number of turns in secondary coil (N2)…

Q: A square wire loop is enclosing a circle loop copper ring. They both lie in the same plane. The…

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Q: In the figure below, a 30.0 cm x 60.0 cm rectangular circuit containing a 18.102 resistor is…

A: Area of rectangular circuit, A= 0.3×0.6Rate of change in magnetic field.…

Q: 7. In the diagram shown below, a 0.45 T uniform magnetic field is directed into the plane of the…

A: Given: The strength of the magnetic field is 0.45 T into the plane. The resistance of the circuit is…

Q: In which of the following systems does Ampere's law apply? Consider that a constant total current I…

A: In which of the following system does ampere law apply.

Q: The induced emf in a coil as a magnet is moved relative to the coil can be increased:   a. No! This…

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Q: What is the principle reason why, when a small electric motor is first started up, the current…

A: The starting current through the armature is large for a moment in starting in electric motor…

Q: 1. An inductor of 4 H and a resistor of 10 ohms are connected to a 20 V battery. The switch…

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Q: A bar magnet enters a long solenoid which has an ammeter attached in series to both ends. Explain…

A: This question refers to electromagnetic induction, in which a changing magnetic field within a wire…

Q: 2. A 22 cm by 35 cm rectangular coil has a single turn and carries a current of 1.4 A. Initially the…

A: Given, Rectangular coil  a=22cm b=35cm Current I=1.4A Magnetic field B= 1.6T

Q: rectangular wire loop of side 4 cm and 6 cm has 50 turns uniformly from 0.1 T to 0.3 T in 60 ms. Can…

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Bar Magnet

In physics, magnetism is a phenomenon exhibited by a magnetic substance that exerts either attractive or repulsive force. A bar magnet is either a rectangular or round and hollow fit comprised of ferromagnetic materials and has a fanciful attractive field surrounded by it.