PHYSICS F/SCI.+ENGRS.,STAND.-W/ACCESS
6th Edition
ISBN: 9781429206099
Author: Tipler
Publisher: MAC HIGHER
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Chapter 28, Problem 81P
To determine
The magnetic flux through a rectangular area of given sides and show that the self inductance per unit length of the cable is given by
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A 60.0-m length of insulated copper wire is wound toform a solenoid of radius 2.0 cm. The copper wire has a radiusof 0.50 mm. (a) What is the resistance of the wire? (b) Treatingeach turn of the solenoid as a circle, how many turns canbe made with the wire? (c) How long is the resulting solenoid?(d) What is the self-inductance of the solenoid? (e) If the solenoidis attached to a battery with an emf of 6.0 V and internalresistance of 350 mΩ, compute the time constant of the
circuit. (f ) What is the maximum current attained? (g) Howlong would it take to reach 99.9% of its maximum current?(h) What maximum energy is stored in the inductor?
Two solenoids A and B, spaced close to each other and sharing the same cylindrical axis, have 450 and 550 turns, respectively. A current of 2.20 A in solenoid A produces an average flux of 300 μWb through
each turn of A and a flux of 90.0 μWb through each turn of B.
(a) Calculate the mutual inductance of the two solenoids.
mH
Me
(b) What is the inductance of A?
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(c) What is the magnitude of the emf that is induced in B when the current in A changes at the rate of 0.500 A/s?
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An unbounded conductor and a triangular contour lie in the same plane (dimensions are markedin the picture). To determine the mutual inductance between the unrestricted conductor andthe triangular outline.
Chapter 28 Solutions
PHYSICS F/SCI.+ENGRS.,STAND.-W/ACCESS
Ch. 28 - Prob. 1PCh. 28 - Prob. 2PCh. 28 - Prob. 3PCh. 28 - Prob. 4PCh. 28 - Prob. 5PCh. 28 - Prob. 6PCh. 28 - Prob. 7PCh. 28 - Prob. 8PCh. 28 - Prob. 9PCh. 28 - Prob. 10P
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- A long coaxial cable (Fig.) consists of two concentric cylindrical conductors with radii a and b, where b>> a. Its central conductor carries a steady current i, and the outer conductor provides the return path, (a) Calculate the energy stored in the magnetic field for a length l of such a cable. (b) What is the inductance of a length l of the cable? You want to wind a coil so that it has resistance but essentially no inductance. How would you do it? Question No- 03 (8 Marks) A student makes an electromagnet by winding 320 turns of wire around aarrow_forwardPLS ANSWER WITHIN 10MINS For a toroidal solenoid, suppose the number of turns is 291, the area is 4.89 cm 2, and the radius is 8.43 cm. The current in the toroidal solenoid increases uniformly from 0 A to 1.37 A in 3.28 us. Find the magnitude of the self-induced emf. Final answer should be in two (2) decimal places. For the final answer, express the unit in symbols. For example: 5.00 Kelvin should be expressed as 5.00 Karrow_forwardA circuit consists of a battery with E=50.0 V, two resistors R1=30.0Q, R2=15.02, and an inductor L=0.3 H as shown in the figure. The switch S is closed at time t=0. (a) Find the potential difference V.-V, just after the switch is closed. (b) Find the currents i, and iz going through R, and R, and their directions, just after the switch is closed. (c) The switch is left closed a long time; find the currents i, and iz. (d) After the switch is left closed a long time, it is opened again. Find V.-V, and V.-Va just after the switch is opened.arrow_forward
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