(a) In an oscillating LC circuit, in terms of the maximum charge Q on the capacitor, what is the charge there when the energy in the electric field is 50.0% of that in the magnetic field? (b) What fraction of a period must elapse following the time the capacitor is fully charged for this condition to occur?
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(a) In an oscillating LC circuit, in terms of the maximum
charge Q on the capacitor, what is the charge there when the
energy in the electric field is 50.0% of that in the magnetic field?
(b) What fraction of a period must elapse following the time the
capacitor is fully charged for this condition to occur?
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- A metal loop sits in the x-y plane. A magnetic eld is directed radians o the z-axis, and variesin time according to B(t) = Boe-at at where Bo and a are constants. Find the emf generated around theloop as a function of time.An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner’s 2.00 T field with his fingers pointing in the direction of the field. Find the average emf induced in his wedding ring in mV, given its diameter is 2.2 cm and assuming it takes 0.45 s to move it into the field.(a) the disk-shaped area of radius twice that of the solenoid that is perpendicular to and centered on the axis of the solenoid as shown in the figure What is the definition of magnetic flux through a region? For this part, what is the magnitude of the magnetic field and what is the area over which there is a magnetic flux? Wb(b) the annulus with an inner radius half that of the solenoid and an outer radius equal to that of the solenoid What is the definition of magnetic flux through a region? For this part, what is the magnitude of the magnetic field and what is the area over which we are interested in the magnetic flux? Wb
- A solenoid (made as a long coil) is a type of electromagnet, the purpose of which is to generate a controlled magnetic eld through a coil wound into a tightly packed helix. Now calculate the self-inductance if the number of windings are 100 of a 5.0 cm long solenoid with cross-sectional area of 0.30 cm2.Compute the induced EMF in the small circular loop of wire centered at x=x0 and y=y0 on x-y plane resulting from the time varying magnetic diplole directed into the direction of z located on z axis at z=z0. The dipole moment of m of magnetic dipole is m = m, cos(ot) . The radius of small circular loop of wire is r1.(r1<A conducting wire loop in the shape of a circle of radius r is at rest in a the ry-plane. A uniform magnetic field fills the space and points in the positive 2 direction. (a) Make a simple sketch showing the circular wire loop and the magnetic field. (b) Calculate the magnetic flux through the loop. (c) If the radius of the loop expands at a rate v = dr/dt, determine the induced emf, E, in the loop and indicate the direction of the induced current.The principle of induction heating is explored in this problem. A sheet of metal (good conductor) of conductivity oc is inserted into AC magnetic field whose value at the surface z =+d and wwww H(d) = (-unitvector y) 10 A/m H(-d) = (-unitvector y) 20 A/m Determine the expressions for (a) the magnetic field vector field H (z) and (b) the volume current density field J (z) in the field region -dA capacitor in an LC oscillator has a maximum potential difference of 24.0 V and maximum energy of 184 µJ. When the capacitor has a potential difference of 12.0 V, what is the energy stored in the magnetic field of the inductor, in µJ?A metal ring 4.50 cm in diameter is placed between the northand south poles of large magnets with the plane of its area perpendicularto the magnetic field. These magnets produce an initial uniform field of1.12 T between them but are gradually pulled apart, causing this fieldto remain uniform but decrease steadily at 0.250 T/s. (a) What is themagnitude of the electric field induced in the ring? (b) In which direction(clockwise or counterclockwise) does the current flow as viewedby someone on the south pole of the magnet?In the figure below, a semicircular conductor of radius R = 0.220 m is rotated about the axis AC at a constant rate of 170 rev/min. A uniform magnetic field of magnitude 1.32 T fills the entire region below the axis and is directed out of the page. R Воли (a) Calculate the maximum value of the emf induced between the ends of the conductor. (b) What is the value of the average induced emf for each complete rotation? (c) How would your answers to parts (a) and (b) change if the magnetic field were allowed to extend a distance R above the axis of rotation? (Select all that apply.) O The value in part (a) would increase. The value in part (a) would remain the same. The value in part (a) would decrease. The value in part (b) would increase. The value in part (b) would remain the same. The value in part (b) would decrease. (d) Sketch the emf versus time when the field is as drawn in the figure. Choose File no file selected (e) Sketch the emf versus time when the field is extended as…For a current-carrying loop attached to a fixed axis in a uniform magnetic field, what is the phase angle between the magnetic flux through the loop and the magnetic torque acting on the loop? In other words, what is the angular difference between when flux is maximum and when torque is maximum?Recommended textbooks for youCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. 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