A permanent magnet works because OA) each atom has moving charge (orbiting electrons) - and moving charge generates a magnetic field B) the electrical current is moving charge (moving electrons) - and moving charge generates a magnetic field OC) moving charge doesn't really generate a magnetic field OD) by magic Moving charge generates a magnetic field. A) True B) False Moving charge generates a magnetic field. If the moving charge is in an already existing field, the fields will interact and the particle will experience a force. A) True B) False

Q: Does the compass needle rotate?A. Yes, clockwise.B. Yes, counterclockwise.C. No, not at all.

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Q: |A bar magnet of moment 2 Am' and having M.I. of 10“ kg/m² about a transverse axis passing through…

A: Given that:- Moment, M=2 Am2Moment of inertia, I=10-6 kg/m2Magnetic induction, B=0.8×10-5 wb/m2

Q: PUJJIDLLTUIINT. 2.14 A student created a diagram to help to explain why the value on the balance…

A: Explanation: A magnet always repels the same pole and attracts the opposite pole, when two magnets…

Q: A charged box (m = 485 g, q = +2.50 µC) is placed on a frictionless incline plane. Another charged…

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Q: Calculate A) the conservative force described by the potential energy function U(x,y,z) = ½ k (2x³…

A: A) In case of conservative force, we know that force is the negative gradient of potential energy.…

Q: econd. A e EMF ov

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Q: What is the voltage in mV across an 9.5 nm thick membrane if the electric field strength across it…

A: Given: A 9.5 nm thick membrane if the electric field strength across it is 4.75 MV/m. Assume a…

Q: 485 J of work must be done to compress a gas to half its initial volume at constant temperature.…

A: SolutionGiven,485 J of woric required to compred half volumelet Temperature i T kelvinlet initial…

Q: Four students are discussing magnetism. Read each of the student's statement and choose the…

A: Magnetism is one aspect of the combined electromagnetic force. It is the force exerted by the…

Q: 3. A 0.5-lb slider moves along a semicircular wire in a horizontal plane as shown. The undeformed…

A: In the presence of conservative forces the sum of  kinetic energy and potential energy remains…

Q: 4. Because of conservation of energy, the energy quantities from question 2 & 3 are equal. Use the…

A: 4) As per the conservation law of momentum, Here, pB, pA, m1, m2, v1, v0, and v2 represent the…

Q: What two processes are part of electromagnetism? A. The production of a magnetic field by permanent…

A: Electromagnetism is the branch of physics which involves the study of electromagnetic force.…

Q: Exercise 16.1 1. An electron (m 9.1 x 10-31 kg) is moving with a velocity of 4.5 x 10' m/s…

A: Given, Mass of electron = 9.1×10-31 kg Velocity = 4.5×107 m/s Magnetic field = 0.08 T

Q: What is the law of magnetism? -Describe what happens when two like poles are brought together. -…

A: Magnetism is the force that magnets exert when they attract or repel one another. The movement of…

Q: A proton traveling at 3000 m/s enters a region of uniform magnetic field of unknown strength, B, in…

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Q: A magnetic material is easy to magnetize but loses its magnetism easily. hard O magnetically…

A: A Soft magnetic material is easy to magnetize but loses its magnetism easily.

Q: What is the magnetic flux through the loop shown in the figure below if a = 27 cm? Assume the area…

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Q: When two parallel plates connected to a 40-V battery, the electric field between the plates is 2200…

A: Given: In this question, the given details are, When two parallel plates connected to a 40 V…

Q: describe how Earth's magnetism affects wolves.

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Q: An antiproton (negatively charged proton) traveling to the left enters a 3.6 µT magnetic field…

A: We are allowed to give the explanation of first question only which is given below. Please repost…

Q: A hollow conducting spherical shell has radii of 0.80 m and 1.20 m, as shown in the figure. The…

A: Given: In this question, the given details are, A hollow conducting spherical shell has radius of…

Q: When a s

A: 41) a) When both the ends of the string is clamped all harmonics exists (both odd and even). The…

Q: Consider a thin permanently magnetized toroid of mean radius a having a small air gap Al between its…

A: The expression for magnetic flux density is  B=μ0H+M ...................................... (1)…

Q: In the figure below, the battery is ideal and E = 10 V, R₁ = 5.0 2, R₂ = 102, and L= 5.0 H. Switch S…

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Q: A uniformly charged insulating rod of length 20.0 cm is bent into the shape of a semicircle as shown…

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Q: A red blood cell typically carries an excess charge of about –2.5 × 10-12 C distributed uniformly…

A: Since you have asked multiple part question, we will solve the first three parts for you, if you…

Q: Modified True/False Indicate whether the statement is true or false. If false, change the identified…

A: 1 Gravity is the weakest of the four fundamental forces. This statement is true.   2 Gravity and…

Q: Before Collision v= 12m/s v=10 m/s After Collision ui m= 3kg v-4m/s v=??? m= 4kg m=3 kg - 4kg

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Q: A very long wire carrying a conventional current of 3.5 A is straight except for a circular loop of…

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Q: Explain how the Earth acts like a large bar magnet in relation to magnetism

A: The Earth acts like a large bar magnet in relation to magnetism.

Q: Two points of equal charge produce an electric force on each other of 289,383,800 N when placed…

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Q: Describe the interior of the earth. Label and list all the layers. Explain how the earth’s megnatic…

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Q: On a hot 98° F day you are driving EAST at 20 mph when you hear a fire engine approaching from…

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Q: In preparation for an observation on the star Sirius, a true altitude is calculated for the star at…

A: Since Refraction depends on the medium properties. As we come down to the surface of a planet,…

Q: why is the answer not negative? Where in the charge of an electron is negative?and how is north…

A: Yes, Electron indeed has a negative charge. And force on a particle due to magnetic field does…

Q: Apply the right-hand rule for a charge in motion in a magnetic field. Determine the direction of the…

A: Given, Charge in motion in a magnetic field

Q: In the image are three point charges, Qi = 18.4 µC, Q2 = -30.6 µC, and Q3 = 57.3 µC, arranged…

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Q: tric field at r

A: Given: Radius is R=10 cm Charge is 20 μC distance, r=20 cm

Q: A staging that weighs 440 N supports two painters, one 370 N and the other 650 N. The reading in the…

A: Solution: As given that Painter 1, W1 = 370 N Painter 2, W2 = 650 N staging weight, Ws = 440 N left…

Q: filings were sprinkled on top of the paper to help sualize tne lielu Which image best shows how…

A: Image B is the right answer

Q: The same forces act on two objects having the same masses. The more massive object will experience…

A: According to Newton's second law  Net force acting on the object is  F= m* a Where m is mass of…

Q: A square wire loop 20 cm on a side, with resistance 20 m2, lies in the plane of the page in a…

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Q: uestion 4 of 10 -decorative magnet sticks to a refrigerator door. What are two possible naterials…

A: Magnet attaches with iron like materials or magnet of opposite pole.

Q: (b) If potential between the two wires is 10 V when ri = a and 12 = B, determine; i. 12 in terms of…

A: Given: v= 10V r1=α  r2=β   To find: The potential values between the value. Electrotactic energy

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.