312 Problem 7.10 A square loop (side a) is mounted on a vertical shaft and rotated at angular velocity w (Fig. 7.19). A uniform magnetic field B points to the right. Find the E(t) for this alternating current generator. Problem 7.11 A square loop is cut out of a thick sheet of aluminum. It is then placed so that the top portion is in a uniform magnetic field B, and is allowed to fall under gravity (Fig. 7.20). (In the diagram, shading indicates the field region; B points into Chapter 7 Electrodynamics the page.) If the magnetic field is 1 T (a pretty standard laboratory field), find the terminal velocity of the loop (in m/s). Find the velocity of the loop as a function of time. How long does it take (in seconds) to reach, say, 90% of the terminal velocity? What would happen if you cut a tiny slit in the ring, breaking the circuit? [Note: The dimensions of the loop cancel out; determine the actual numbers, in the units indicated.] B a a FIGURE 7.19 FIGURE 7.20
312 Problem 7.10 A square loop (side a) is mounted on a vertical shaft and rotated at angular velocity w (Fig. 7.19). A uniform magnetic field B points to the right. Find the E(t) for this alternating current generator. Problem 7.11 A square loop is cut out of a thick sheet of aluminum. It is then placed so that the top portion is in a uniform magnetic field B, and is allowed to fall under gravity (Fig. 7.20). (In the diagram, shading indicates the field region; B points into Chapter 7 Electrodynamics the page.) If the magnetic field is 1 T (a pretty standard laboratory field), find the terminal velocity of the loop (in m/s). Find the velocity of the loop as a function of time. How long does it take (in seconds) to reach, say, 90% of the terminal velocity? What would happen if you cut a tiny slit in the ring, breaking the circuit? [Note: The dimensions of the loop cancel out; determine the actual numbers, in the units indicated.] B a a FIGURE 7.19 FIGURE 7.20
Chapter13: Electromagnetic Induction
Section: Chapter Questions
Problem 69AP: The conducting rod shown in the accompanying figure moves along parallel metal rails that are 25-cm...
Related questions
Question
7.10
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Recommended textbooks for you
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning