Introductory Circuit Analysis; Laboratory Manual For Introductory Circuit Analysis Format: Kit/package/shrinkwrap
13th Edition
ISBN: 9780134297446
Author: Boylestad, Robert L.
Publisher: Prentice Hall
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Chapter 12, Problem 20P
To determine
The magnetic flux
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A conductor of length 15 cm is moved at 750 mm/s at right angles to a uniform flux density of 1,2 T. Determine the emf induced in the conductor. Calculate also the change of flux linked with the other coil if it is wound with 400 turns.
a) To increase the output of an ac generator, a student has the choice of doubling either the generator's magnetic field or its frequency. To maximize the increse in emf output,
A - he should double the magentic field.B - he should double the frequency.C - it does not matter which one he doubles.
b) Two students display their ac generators at a science fair. The generator made by Student A has a loop area of 100 cm22 rotating in a magnetic field of 20 mT at at 60 Hz. The generator made by Student B has a loop area of 75 cm22 rotating in a magnetic field of 200 mT at at 120 Hz. Calculate the emf of the two generators.
Student A:
Student B:
A non-magnetic ring having a cross-sectional area of 10 cm2 is uniformly wound with 300 turns of a given wire. If a current of 1 A is passed through the coil, 2.4 µWb of flux generated inside the ring. Determine the average diameter of the ring.
Chapter 12 Solutions
Introductory Circuit Analysis; Laboratory Manual For Introductory Circuit Analysis Format: Kit/package/shrinkwrap
Ch. 12 - Using Appendix E, fill in the blanks in the...Ch. 12 - Repeat Problem 1 for the following table if...Ch. 12 - For the electromagnet in Fig. 12.34 a. Find the...Ch. 12 - Which section of Fig. 12.35-(a), (b), or (c)-has...Ch. 12 - Find the reluctance of a magnetic circuit if a...Ch. 12 - Prob. 6PCh. 12 - Find the magnetizing force H for Problem 5 in SI...Ch. 12 - If a magnetizing force H of 600 At/m is applied to...Ch. 12 - For the series magnetic circuit in Fig. 12.36,...Ch. 12 - Find the current necessary to establish a flux of...
Ch. 12 - a. Find the number of turns N1 required to...Ch. 12 - a. Find the mmf (NI) required to establish a flux...Ch. 12 - For the series magnetic circuit in Fig.12.40 with...Ch. 12 - a. Find the current I required to establish a flux...Ch. 12 - Prob. 15PCh. 12 - Determine the current I1 required to establsh a...Ch. 12 - a. A flux of 0.210-4Wb will establish sufficient...Ch. 12 - For the series-parallel magnetic circuit in Fig....Ch. 12 - Find the magnetic flux established in the series...Ch. 12 - Prob. 20PCh. 12 - Note how closely the B-H curve of cast steel in...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- A ring rotates around the y-axis in a magnetic field B=B0sinwt ax Wb/m2. The voltage induced in the ring is related to which of the following? Please choose one: a.None b.A combination of motion and transformer emf C.Motion emf D.Transformer emfarrow_forward1. The coefficient of coupling between two coils is 60%. The excited coil produces a flux og 0.2 Wb. Determine the value of the leakage flux. 2. An emf of 3.5V is obtained by moving a wire 1.1m long at a rate of 7m/s perpendicular to the wire and to a uniform magnetic field. What is the intensity of the field?arrow_forwardH.) When one coil of a magnetically coupled pair has a current of 5 A, the resulting fluxes φ11 and φ12 are 0.40 mWb and 0.80 mWb, respectively. If the number of turns N1 and N2 are 500 and 1500, respectively, what is the self-inductance L2? a. 560 mH b. 1080 mH c. 540 mH d. 1060 mHarrow_forward
- 26 Choose the parameter which is developed in a generator, when a conductor cuts the magnetic flux. a. Current b. Voltage c. Mechanical Energy d. Forcearrow_forwardA varying magnetic flux linking a coil is given by phi = Xt^2. If at time t = 3 s, the emf induced is 9 V, then the value of X isarrow_forwardA coil of inductance 8mH, produces 80µWb of magnetic flux. Of this total flux, 60µWb are linked to a second coil of inductance 2mH, how much is the mutual inductance between coils?arrow_forward
- 3.2 A generator has a copper conductor of 6 m length, rotating at a speed of 10 m/s at a right angle to the uniform magnetic flux density of 10 T. 3.2.1 Determine the magnitude of the induced emf across the ends of the conductor. 3.2.2 Determine the magnitude of the induced emf if the flux density changes to 15 T.arrow_forwardThe area of a hysteresis loop obtained from a ferromagnetic specimen is 12.5 cm2. The scales used were: horizontal axis 1 cm = 500A/m; vertical axis 1 cm = 0.2 T. Determine (a) the hysteresis loss per m3 per cycle, and (b) the hysteresis loss per m3 at a frequency of 50 Hz.arrow_forward8. When one coil of a magnetically coupled pair has a current of 5 A, the resulting fluxes $11 and 12 are 0.40 mWb and 0.80 mWb, respectively. If the number of turns N1 and N2 are 500 and 1500, respectively, what is the self-inductance L2?arrow_forward
- 1. Determine the force in pounds upon each side of a coil of 40 turns carrying a current of 15 A if the axial length of the coil is 10 inch and flux density is 20,000 lines per square inch. The conductors are at right angles to the flux.? 2. Two coupled coils with L1= 20 mH, L2 = 10mH and k = 0.5 are connected in series opposing. Determine the total inductance.?arrow_forwardThe electrodynamic wattmeter consist of two fixed coils ‘a’ and ‘b’ placed unsymmetrical to each other and producing a uniform magnetic field نقطة واحدة True Falsearrow_forward4. A non-magnetic current having a cross sectional area of 10 cm2 is uniformly wound with 300 turns of a given wire. If a current of 1A is passed through the coil, 2.4 micro-Weber of flux is generated inside the sing, determine the average diameter of the ringa. 50 cmc. 48 cmb. 42 cmd. 54 cmarrow_forward
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