Question 3 A student is creating an electromagnet for an investigation. Which feature of the electromagnet will least influence the magnetic force? A the material of the core the brand of the battery C the number of wire coils D the size of the power source

Q: Use the following diagram to answer the following question. Compasses placed around a permanent bar…

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Q: Give the SI unit of magnetic dipole moment. a) Am b) Am2 c) Tm2 d) Tm

A: B

Q: A solenoid 1.86 m long and 3.80 cm in diameter carries a current of 21.0 A. The magnetic field…

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Q: Question 18 James makes two electromagnets, as shown in the figure below:

A: Since the magnetic field depend upon the current and the current is  Proportional to voltage so…

Q: A 10 cm solenoid has 18 turns. If a current of 5 A passes through it, what is the magnetic field…

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Q: Q6 A wire of length i forms a section of a circuit with current I. The section lies along the x…

A: Answer..

Q: Pick out the expression for magnetic field inside a toroid from the following. a) B = μ0 NI b) B =…

A: To Solve: The expression for magnetic field inside a toroid

Q: Several electrons move at speed 7.30 × 105 m/s in a uniform magnetic field with magnitude B = 0.450…

A: Speed of electron is Magnitude of magnetic field is Direction of magnetic field is…

Q: Which of the following is a property associated with strong permanent magnets? Materials with this…

A: Permanent magnets are the magnets which don't loose their magnetism with time . Electromagnets are…

Q: How can a magnet produce a magnetic field? a by some other forces in the magnet aside from the…

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Q: A proton traveling at 32.1° with respect to the direction of a magnetic field of strength 3.75 mT…

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Q: What is the strength of the magnetic field at the center of the two concentric conducting coils…

A: Given: Radius of outer coil R=4 cm, radius of inner coil r=3 cm, Current in outer coil Io=7 A,…

Q: Part A The magnetic force on a charged particle in a magnetic field is zero if Select all that…

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Q: A proton travels at 2.0x107 m / s in a plane perpendicular to a uniform magnetic field of 2.5 T, as…

A: We have to use some basic formula here.

Q: If the current in the wire is 4.07A, what is the magnitude of the magnitude of the magnetic field…

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Q: In the figure above, a particle moves along a circle in a region of uniform magnetic field with…

A: A charged particle either electron or proton moves along a circle in a region of uniform magnetic…

Q: A wire 2.17 m long carries a current of 9.82 A and makes an angle of 36.4° with a uniform magnetic…

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Q: A magnetic field is generated when using an electromagnet. The events that occur to create the…

A: Required : The correct order of events. (C) Wrap a wire to create loops. (A) The magnetic domains…

Q: In the diagram below, a negative charge is moving in the direction of the green arrow. There Is a…

A: Given The electron is moving in + axis The magnetic field is directed into the page ( -y axis)

Q: Assume that a uniform magnetic field is directed into this page. If an electron is released with an…

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Q: Picture a negative charge moving leftward on your computer screen,  with some velocity. A magnetic…

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Q: The diagram below shows a straight wire carrying a current i to the right in a uniform magnetic…

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Q: a negatively charged particle moves to the right when it enters a magnetic field in the plane of the…

A: The Right hand rule is used to determine the direction of the magnetic field-   Thumb: Velocity of…

Q: 5. You hook up a slinky to some batteries and run current through it. You use a Hall probe to…

A: The problem is asking for the number of turns in the slinky. The magnetic field inside a solenoid…

Q: Six students built electromagnets for their physics lab. The properties of each are shown below.…

A: The strength of the current passing through the coil, the greater the current, the greater the…

Q: QUESTION 1 Match the direction of the magnetic force to the cases below. A positive moving to the…

A: In this question, we have to find the direction of magnetic force.

Q: What happens to the direction of the magnetic field generated by an electromagnet if the direction…

A: What happens to the direction of the magnetic field generated by an electromagnet if the direction…

Q: Which of the following statements is True? A. A moving charge or a collection of moving charges…

A: Given the statements  A. A moving charge or a collection of moving charges produces a magnetic…

Q: match what happens when a ferromagnetic material is placed in an external magnetic field. a. The…

A: Given : When a ferromagnetic material is placed in an external Magnetic field:   To Determine:…

Q: In the diagram below, a positive charge is moving in the direction of the green arrow. There is a…

A: Given, Motion of charge and magnetic field

Q: An electron moves horizontally toward a screen. The electron moves along the path that is shown…

A: According to Fleming Left hand rule- if magnetic field is along Index finger, Velocity is along…

Q: a. is a force between two objects (or surface) that is in contact with one another. is an attractive…

A: As per guidelines , only 3 sub-parts are solved here. 1.a) The force which is acted between two…

Q: An electron is moving in a direction indicated by the arrow. The magnetic field lines are shown.…

A: Recall FB→=q(V→×B→)as charge is negative so direction of force will be oposite to V→×B→

Q: The needle of the compass was unaffected at every point. The lab group concludes that the electric…

A: Solution:   The experimental result depends on the sensitivity of the compass

Q: A magnetic force of 450 N acts on a 2.5 mC charge that is moving perpendicular to a magnetic field…

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Q: An electron travels in a circular path with speed 3.4x105 m/s through a uniform magnetic field. If…

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Q: At a certain location, the horizontal component of the earth's magnetic field is 2.3 × 10-5 T, due…

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Q: A positively charged particle moving upwards enters a magnetic field directed due east. Which of…

A: Right Hand Rule-1 : Point your thumb of right hand in direction of motion of positively charge…

Q: A very long, straight wire carries a current of 38 A in the +k direction. An electron 2.4 cm from…

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Q: In 14.0 seconds a total charge of 200 C flows through a wire. If the wire is inside of a 42.0 mT…

A: Given data:  Time (t) = 14.0 s Charge (q) = 200 C Magnetic field (B) = 42.0 mT Angle (θ) = 90°…

Q: An electron accelerates from rest through a uniform electric field, then moves into a magnetic field…

A: Potential difference, V = 99 V Magnetic field, B = 0.75 T Charge on electron, q = 1.6×10-19 C Mass…

Q: A solenoid has 505 turns over a length of 0.54 m. What current will produce a magnetic field of…

A: Number of turns of solenoid N = 505  Length of the solenoid L = 0.54 m The magnetic field inside the…

Q: A proton is accelerated from rest through a potential difference of 150 V. It then enters a region…

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Q: A straight wire carries a current of 10 A at an angle of 30° with respect to the direction of a…

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Q: 8. An electron is moving through a magnetic field in a direction perpendicular to the field as shown…

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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.