Consider a circular loop that is threaded by a magnetic field that points into the page. The magnetic field reverses direction. State the direction of the induced current. XXX Clockwise Counterclockwise XXX
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Q: Consider a circular loop that is threaded by a magnetic field that points into the page. The…
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- a bar magnet is brought closer to a conducting wire loop with 7Ω of resistance. As a result a uniform 3 A current is induced in the wire. What is the rate at which the external magnetic flux is changing indies the wire loop? Explain the reasoning behind your selection in detail. A) 5 T m2/sB) 10.5 T m2/sC) 21 T m2/sD) 42 T m2/sE) 84 T m2/sA square loop,10.0cm on a side, is placed aroundthe center of a long solenoid which has 1500 turns of wire per meter. Thediameter of the solenoid is 9.00cm. The square coil has a resistance of 8.00. A cross section of the setup is shown toright. a.Determine the magnitude and the direction of the magnetic field inside the solenoid if it has a current of I=5.00 Amps in the direction shown. b.The initialcurrent through the solenoid is zero, at t =0 the current in the solenoid begins increasing according to the formulaI(t)=C1t2whereC1=5.00Amp/s2. Determine the magnitudeanddirectionof the current in the square coil at a time of .600 seconds.In an electric motor, a coil with 104 turns of radius 1.90 cm can rotate between the poles of a magnet. The magnetic field magnitude is 0.200 T. When the current through the coil is 57.7 mA, what is the maximum torque that the motor can deliver? N.m
- Enter an expression for the magnitude of the magnetic flux through the loop using the symbols in the palette below. Your expression must be valid at all times described in the problem statement.The component of the external magnetic field along the central axis of a 69 turn circular coil of radius 47.0 cm decreases from 2.90 T to 0.700 T in 2.10 s. If the resistance of the coil is R = 3.00 §, what is the magnitude of the induced current in the coil? magnitude: What is the direction of the current if the axial component of the field points away from the viewer? counter-clockwise clockwise ADue to the bar magnet being pulled away from the solenoid, the included pole that is created at location I is a _____ pole. The electron flowing through the galvanometer would be ____.
- A mass spectrometer is used to examine the isotopes of uranium. Ions in the beam emerge from the velocity selector at a speed of 2.78 x 105 m/s and enter a uniform magnetic field of 0.575 T directed perpendicularly to the velocity of the ions. What is the distance between the impact points formed on the photographic plate by singly charged ions of 235U and 238U? cm Need Help? Read ItA conductive bar is sliding to the right on the two conducting rails and current is induced in the circuit shown. a) What is the direction of the induced current? b) What is the direction of the force that the magnetic field exerts on the bar because of the induced current?Need Help? mV Sascha Hahn/Shutterstock.com A helicopter (see figure below) has blades of length 3.40 m, extending out from a central hub and rotating at 2.30 rev/s. If the vertical component of the Earth's magnetic field is 50.0 μT, what is the magnitude of emf induced between the blade tip and the center hub? Read It
- Calculate the Hall voltage induced on a patient's heart while being scanned by an MRI unit. Approximate the conducting path on the heart wall by a wire 8.00 cm long that moves at 10.0 cm/s perpendicular to a 1.45 T magnetic field. mVBen coils a wire to create a solenoid that is 25-cm long with 300 turns. Mak coils a wire to create a solenoid that is 10-cm long with 200 turns. They place their solenoids in otherwise identical circuits so that the steady-state current is the same for each solenoid. Determine the ratio of the magnetic fields of the two solenoids BPh/BF.A section of conductive wire with a mass of 0.036 kg and a length of 0.38 m is placed on a frictionless inclined plane at an angle of 45º with respect to the horizontal. At all points there is a uniform horizontal magnetic field 0.41. Determine the magnitude and direction of the current in the wire necessary for the wire to remain at rest. Get the answer in Amperes