Q14. Suppose that a sinusoidal voltage is applied across coil 1 in series with the 10 Q resistor of Figure 3. As stated in Q13, this is directly related to the changing magnetic flux, PB, within both coils. Thus, Pâ is sinusoidal, as shown below. Based on the graph below, Figure 4, and Faraday’s Law (Equation 3), predict the shape you expect for the induced voltage &2 across Coil 2. You can use the insert pen function with a steady hand! Фв E2

Q14. Suppose that a sinusoidal voltage is applied across coil 1 in series with the 10 Q resistor of Figure 3. As stated in Q13, this is directly related to the changing magnetic flux, PB, within both coils. Thus, Pâ is sinusoidal, as shown below. Based on the graph below, Figure 4, and Faraday’s Law (Equation 3), predict the shape you expect for the induced voltage &2 across Coil 2. You can use the insert pen function with a steady hand! Фв E2

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter31: Faraday’s Law

Section: Chapter Questions

Problem 31.7P

See similar textbooks

Similar questions

A loop of wire is moving near a long, straight wire carrying a constant current I as shown in Figure CQ31.10. (a) Determine the direction of the induced current in the loop as it moves away from the wire. (b) What would be the direction of the induced current in the loop if it were moving toward the wire?
(a) 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 ling, given its diameter is 2.20 cm and assuming it takes 0.250 s to move it into the field. (b) Discuss whether this current would significantly change the temperature of the ring.
An N-turn circular wire coil of radius r lies in the xy-plane (the plane of the page), as in Figure P20.10. A uniform magnetic field is turned on, increasing steadily from 0 to B0 in the positive z-direction in t seconds. (a) Find a symbolic expression for the emf, , induced in the coil in terms of the variables given. (b) looking down on at the xy-plane from the positive z-axis, is the direction of the induced current clockwise or counterclockwise? (c) If each loop has resistance R, find an expression for the magnitude of the induced current, I.
An N-turn circular wire coil of radius r lies in the xy-plane (the plane of the page), as in Figure P20.10. A uniform magnetic field is turned on, increasing steadily from 0 to B0 in the positive z-direction in t seconds. (a) Find a symbolic expression for the emf, , induced in the coil in terms of the variables given. (b) looking down on at the xy-plane from the positive z-axis, is the direction of the induced current clockwise or counterclockwise? (c) If each loop has resistance R, find an expression for the magnitude of the induced current, I.
What are the directions of the fields in the center of the loop and coils shown in Figure 22.60?
Referring to Figure 23.57(b), what is the direction of the current induced in the coil: (a) If the current in the wire increases? (b) If the current in fine wire decreases? (c) If the current in the wire suddenly changes direction? Explicitly show how you follow the steps in the Problem-Solving Strategy for Lenz’s Law.
Figure OQS1.I is a graph of the magnetic flux through a certain coil of wire as a function of time during an interval while the radius of the coil is increased, the coil is rotated through 1.5 revolutions, and the external source of the magnetic field is turned off, in that order. Rank the emf induced in the coil at the instants marked A through K from the largest positive value to the largest-magnitude negative value. In your ranking.
Integrated Concepts If electric and magnetic field strengths vary sinusoidally in time, being zero at t = 0, then E = E0 sin 2ft and B = B0 sin 2 ft. Let f = 1.00 GHz here. (a) When are the field strengths first zero? (b) When do they reach their most negative value? (c) How much time is needed for them to complete one cycle?
Scientific work is currently under way to determine whether weak oscillating magnetic fields can affect human health. For example, one study found that drivers of trains had a higher incidence of blood cancer than other railway workers, possibly due to long exposure to mechanical devices in the train engine cab. Consider a magnetic field of magnitude 1.00 103 T, oscillating sinusoidally at 60.0 Hz. If the diameter of a red blood cell is 8.00 m, determine the maximum emf that can be generated around the perimeter of a cell in this field.
Why must pan of the circuit be moving relative to other parts, to have usable motional emf? Consider, for example, that the rails in Figure 23.11 are stationary relative to the magnetic field, while the rod moves.
Integrated Concepts Referring to the situation in the previous problem: (a) What current is induced in the ring if its resistance is 0.0100 ? (b) What average power is dissipated? (c) What magnetic field is induced at the center of the ring? (d) What is the direction of the induced magnetic field relative to the MRI'S field?
Unreasonable Results An LC circuit containing a 2.00-H inductor oscillates at such a frequency that it radiates at a 1.00m wavelength. (a) What is the capacitance of the circuit? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?