(a)
The inductance of the coil.
(a)
Answer to Problem 38E
The inductance of the coil is
Explanation of Solution
Write the expression for the inductance in a coil.
Here,
Substitute
Here,
Conclusion:
Substitute
Thus, the inductance of the coil is
(b)
The energy stored in the coil
(b)
Answer to Problem 38E
The energy is
Explanation of Solution
Write the expression for the energy stored in the coil.
Here,
Conclusion:
Substitute
Thus, the energy is
(c)
The time for supply the energy to the power plant.
(c)
Answer to Problem 38E
The time required to supply the power is
Explanation of Solution
Write the expression for the power.
Here,
Rearrange the above equation to find the required time.
Conclusion:
Substitute
Thus, the time required to supply the power is
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Chapter 20 Solutions
General Physics, 2nd Edition
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- 6.0 μsμs after the switch of (Figure 1) is moved from 1 to 2, the magnetic energy stored in the inductor has decreased by half What is the value of inductance L?arrow_forwardWhat is the magnetic field due to an inductor of length 10 cm that has300 turns if 0.25 A of current passes through it? What is its inductance ifthe cross sectional area of the inductor is 1.5 cm2?arrow_forwardYou are working at a company that explores new ways of generating and storing energy in an effort to reduce the world's dependence on oil. Your supervisor explains a new method of storing energy that has been proposed. A huge underground superconducting solenoid of inductance 55.0 H, 1.20 km in diameter, would be fabricated. Each winding of the 150-turn solenoid would be made from Nb,Sn wire and would carry a maximum current of 15.0 kA. (a) Your supervisor asks you to determine the total energy (in J) that could be stored in the coil. (b) She is also concerned about the structural integrity of the coil and requests that you determine the compressive force (in N) acting between two adjacent windings of the coil that are 3.88 m apart. (Enter the magnitude.) N.arrow_forward
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- Classical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning