Which of the following factors affect the amount of voltage induced by a changing magnetic field in a coil? a) The strength of the magnetic field. b) The speed of the magnetic field. c) The number of turns in the coil. d) All of the above

Q: 16) Kirchhoff's loop rule is a consequence of what fundamental principle? A. conservation of…

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Q: Explain how a magnet can pick up an object even though the magnetic field cannot do work on the…

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Q: The commutator-brush system in the simple DC motor you studied functions to A. flip the current…

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Q: f the magnitude of the magnetic induction is less than that in a vaccum within a solid, so, this…

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Q: The general equation to calculate the magnetic field Bis known as the law of: O to. Faraday's Law O…

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Q: 7) Scenerio 4: The left bar moves to the left with speed 6.15 m/s and the right bar also moves to…

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Q: A straight wire carries a current with the direction of the current as indicated. In which direction…

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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: Describe how to plot the magnetic field pattern of a magnet using a compass.

A: Step 1 The compass is a device that is used to find direction with the help of the magnetic field of…

Q: Deflection reverses when the poles of the magnets are reversed. This direction of deflection shows…

A: Given : Poles of magnet are reversed. Direction of deflection shows the direction of current.

Q: The magnetic field produced at centre of a current carrying circular wire depends on: O a. number of…

A: solution as

Q: At a particular moment, the magnetic field from the primary coil points to the right and is…

A:

Q: If the N pole of a magnet were close to the S pole of another magnet, the field lines would run from…

A:

Q: Predict: If a stronger magnet is used to create the change in magnetic field, the current produced…

A: Given : What happens to the current through the coil if a stronger magnet is bought near to it ?

Q: A device that based on the magnetic force that is acting on a current-carrying wire or coil is a(n).…

A: A current-carrying coil in a magnetic field experiences a magnetic force. Due to this magnetic…

Q: the current flows counter clockwise in a coil of wire. what is the direction of the magnetic field…

A: solution as

Q: Which of the following rule is used to determine the direction of rotation of the coil of the D.C…

A: The direction of rotation of the coil in dc motor

Q: Identify the laws of electromagnetic induction.

A:

Q: If the north pole of magnet is moved towards the coil, the induced current in the coil will be…

A: According to Lenz’s law, the emf is induced in the coil to oppose the change.

Q: Which of the following would decrease the current produced by a generator

A:

Q: he S.I unit of magnetic field is

A: 1------ Magnetic field unit is .... TESLA....... OPTION A..... Ampere -unit of current  Ohm-- unit…

Q: Kh-13E. If the compass of the tangent galvanometer makes angle θ with respect to the earth magnetic…

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Q: Explain: A changing magnetic field near a conductor induces a current in the conductor

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Q: Magnetic dipole moment (м) of the coil, place in . uniform magnetic field of induction ( B does not…

A: Magnetic dipole moment be M The magnetic field of Induction is B Magnetic dipole moment is given by…

Q: Describe: a) the work done by magnetic forces on moving charges. b) the condition for an electric…

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Q: The torque on a solenoid in a magnetic field is not a function of its ____. A. loop area B. number…

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Q: Describe the difference in what happens when you move the magnet through the coil slowly vs.…

A: The moment of the magnet through the coil gives us induced voltage in the coil which is produced due…

Q: In a bar magnet, the force of attraction is minimum (approximately no force) O a. at both ends of a…

A: We need to comment on where the force of attraction due to bar magnet is minimum.

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A:

Q: Which of the following rule is used to determine the direction of rotation of the coil of the D.C…

A: Right hand rule gives the direction of motion of coil.

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Q: Magnetic lines of force passing through a specific area changes by O a. changing magnetic field…

A: Magnetic lines of force passing through a specific area changes by  changing magnetic field…

Q: Which of the following cannot cause an induced current to form in a conducting loop? A. Changing the…

A: The induced emf is given by E=dφdt where φ is the magnetic flux and it is given by φ=BA Where B is…

Q: 1. Which of the following is NOT a factor that affects the magnitude of the EMF induced in a coil of…

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Q: A electric motor has a current running through it and it is rotating counterclockwise in an external…

A: We have an electric motor with a current running through it and it is rotating counterclockwise in…

Q: Ampere's law can be used to determine the magnetic field: Ouestion 8AnswerA. Inside a long straight…

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Q: Which of the following affect the magnetic energy of a current-carrying coil. Select all that apply.…

A: Let's check each option one by one a. Current I Correct magentic field is directly proportional to…

Q: Two coils are connected to different power supplies. Each coil carries a current of 0.15 A. Coil A…

A: According to Ampere's current law, ∫B→.dl→=μ0I If current associated with each turn of coil is I.…

Q: If number of turns (N), area (A) and magnetic field (B) have same value for a square and circular…

A: Using formula for torque in current carrying loop in magnetic field

Q: Which of the following would cause the light bulb to glow? O A. Placing the magnet beside the light…

A: A group of students is given a loop of wire connected to a light bulb and a bar magnet. They are…

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A:

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.