EBK PHYSICS FOR SCIENTISTS AND ENGINEER
1st Edition
ISBN: 9780100546714
Author: Katz
Publisher: YUZU
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Chapter 32, Problem 42PQ
Suppose you have a simple homemade AC generator like the one in Figure 32.20 (page 1026) whose emf is about half of what you need to power a particular motor. How can you easily modify the generator to suit your needs? Explain your modifications specifically.
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Chapter 32 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
Ch. 32.1 - To calculate the magnetic flux through the...Ch. 32.2 - Prob. 32.2CECh. 32.3 - Prob. 32.3CECh. 32.3 - Prob. 32.4CECh. 32.4 - Prob. 32.5CECh. 32.5 - Prob. 32.6CECh. 32.6 - Prob. 32.7CECh. 32.8 - Prob. 32.8CECh. 32.8 - Prob. 32.9CECh. 32 - A constant magnetic field of 0.275 T points...
Ch. 32 - Prob. 2PQCh. 32 - Prob. 3PQCh. 32 - Prob. 4PQCh. 32 - Prob. 5PQCh. 32 - Figure P32.6 shows three situations involving a...Ch. 32 - A rectangular loop of length L and width W is...Ch. 32 - The magnetic field through a square loop of wire...Ch. 32 - Prob. 9PQCh. 32 - Prob. 10PQCh. 32 - Suppose a uniform magnetic field is perpendicular...Ch. 32 - Prob. 12PQCh. 32 - A square conducting loop with side length a = 1.25...Ch. 32 - A The magnetic field in a region of space is given...Ch. 32 - A The magnetic field in a region of space is given...Ch. 32 - Prob. 16PQCh. 32 - Prob. 17PQCh. 32 - Prob. 18PQCh. 32 - A square loop with side length 5.00 cm is on a...Ch. 32 - A thin copper rod of length L rotates with...Ch. 32 - Figure P32.21 shows a circular conducting loop...Ch. 32 - Prob. 22PQCh. 32 - A square loop with side length L, mass M, and...Ch. 32 - Prob. 24PQCh. 32 - Prob. 25PQCh. 32 - Prob. 26PQCh. 32 - Prob. 27PQCh. 32 - A solenoid of area Asol produces a uniform...Ch. 32 - Two circular conductors are perpendicular to each...Ch. 32 - Two circular conducting loops labeled A and B are...Ch. 32 - Prob. 31PQCh. 32 - Prob. 32PQCh. 32 - Prob. 33PQCh. 32 - Prob. 34PQCh. 32 - Prob. 35PQCh. 32 - Find an expression for the current in the slide...Ch. 32 - The slide generator in Figure 32.14 (page 1020) is...Ch. 32 - Prob. 38PQCh. 32 - A thin conducting bar (60.0 cm long) aligned in...Ch. 32 - A stiff spring with a spring constant of 1200.0...Ch. 32 - A generator spinning at a rate of 1.20 103...Ch. 32 - Suppose you have a simple homemade AC generator...Ch. 32 - Prob. 43PQCh. 32 - Prob. 44PQCh. 32 - Prob. 45PQCh. 32 - Prob. 46PQCh. 32 - A square coil with a side length of 12.0 cm and 34...Ch. 32 - Prob. 48PQCh. 32 - Prob. 49PQCh. 32 - Prob. 50PQCh. 32 - Prob. 51PQCh. 32 - Prob. 52PQCh. 32 - Prob. 53PQCh. 32 - Prob. 54PQCh. 32 - Prob. 55PQCh. 32 - Prob. 56PQCh. 32 - Prob. 57PQCh. 32 - A step-down transformer has 65 turns in its...Ch. 32 - Prob. 59PQCh. 32 - Prob. 60PQCh. 32 - Prob. 61PQCh. 32 - Prob. 62PQCh. 32 - Prob. 63PQCh. 32 - A bar magnet is dropped through a loop of wire as...Ch. 32 - Prob. 65PQCh. 32 - Prob. 66PQCh. 32 - A circular coil with 75 turns and radius 12.0 cm...Ch. 32 - Each of the three situations in Figure P32.68...Ch. 32 - A square loop with sides 1.0 m in length is placed...Ch. 32 - Prob. 70PQCh. 32 - Two frictionless conducting rails separated by l =...Ch. 32 - Imagine a glorious day after youve finished...Ch. 32 - Prob. 73PQCh. 32 - A Figure P32.74 shows an N-turn rectangular coil...Ch. 32 - A rectangular conducting loop with dimensions w =...Ch. 32 - Prob. 76PQCh. 32 - A conducting rod is pulled with constant speed v...Ch. 32 - Prob. 78PQCh. 32 - A conducting single-turn circular loop with a...Ch. 32 - A metal rod of mass M and length L is pivoted...
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- The 335-kV ac electricity from a power transmission line is fed into the primary winding of a transformer. The ratio of the number of turns in the secondary winding to the number in the primary winding is Ns/Np=100 . (a) What voltage is induced in the secondary winding? (b) What is unreasonable about this result? (c) Which assumption or premise is responsible?arrow_forwardIn the transformer shown in Figure P33.51, the load resistance RL is 50.0 . The turns ratio N1/N2 is 2.50, anti the rms source voltage is Vs = 80.0 V. If a voltmeter across the load resistance measures an rms voltage of 25.0 V, what is the source resistance Rs?arrow_forwardA 75-turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 radius in a 1.25 T field, starting with the plane of the coil parallel to the field. (a) What is the peak emf? (b) At what time is the peak emf first reached? (c) At what time is the emf first at its meet negative? (d) What is the period of the AC voltage output?arrow_forward
- A person is working near the secondary of a transformer as shown in Figure P32.31. The primary voltage is 120 V at 60.0 Hz. The secondary voltage is 5 000 V. The capacitance Cs, which is the stray capacitance between the hand and the secondary winding, is 20.0 pF. Assuming the person has a body resistance to ground of Rb = 50.0 k, determine the rms voltage across the body. Suggestion: Model the secondary of the transformer as an AC source. Figure P32.31arrow_forwardAn ac source of emf delivers 5.0 mW of power at an rms current of 2.0 mA when it is connected to the primary cod of a transformer. The rms voltage across the secondary coil is 20 V. (a) What are die voltage across the primary coil and the current through the secondary coil? (b) What is the ratio of secondary to primary turns for the transformer?arrow_forwardThe 4.00 A current through a 1.30 H inductor is dissipated by a 2.00 Ω resistor in a circuit like that in the figure below with the switch in position 2. a. What is the initial energy in the inductor? b. How long will it take the current to decline to 15.00% of its initial value? c. Calculate the average power dissipated in the inductor. d. What is the ratio of the initial power dissipated by the resistor to the average power dissipated by the inductor?arrow_forward
- An AC generator consists of 6 turns of wire. Each turn has an area of 0.040 m^2. The loop rotates in a uniform field (B = 0.20 T) at a constant frequency of 50 Hz. What is the maximum induced emf? a. 3.0 V b. 15 V c. 4.8 V d. 2.4 V e. 13 Varrow_forwardExp. No. Stator Voltage Control of an Induction Motor using PWM The objective: The objective of this experiment is to present the voltage control of induction motor. The theory: Stator Voltage Control is a method used to control the speed of Fan laad an Induction Motor. The speed of a three phase induction motor can be varied by varying the supply voltage. n na n Speed n As we already know that the torque developed is proportional to the square of the supply voltage and the slip at the maximum torque is independent of the supply voltage. The variation in the supply voltage does not alter the synchronous speed of the motor. Soo Procedure: 1. Using Matlab-Simulink, connect the circuit shown above, Connect the circuit shown above with Vdc=400V and Tm=10N.m. 2. To control the IGBTS, a PWM, 6-pulse and three arms will be used. 3. Let the carrier frequency = 2kHz. 4. Let the modulation index inside the PWM = m in order to vary it from the command window of Matlab. 5. Vary the modulation…arrow_forwardA.) An ac generator has 12 turns of wire of area 0.08 m2. The loop rotates in a magnetic field of 0.3 T at a frequency of 60 Hz. Find the maximum induced emf. a.) Calculate the average voltage generated in a six-turn full pitch coil of a 25-cycle alternator if the flux per pole is 7.2x105 Maxwells. What is the effective voltage?arrow_forward
- Current Attempt in Progress * Incorrect. A 1.57 uF capacitor is connected as in the figure to an ac generator with Em = 30.0 V. What is the amplitude of the resulting alternating current if the frequency of the emf is (a)0.994 kHz and (b)7.89 kHz? (a) Number (b) Number: Units m Units marrow_forwardFollowing graph is obtained when AC passes through Voltage Current T/2 3n/2 wt O a. resistor and inductor O b. inductor О с. сарасitor O d. Resistorarrow_forwardQ-10. To construct an ac generator having an output of 15 V maximum when rotated at 50 Hz, a uniform magnetic field of 0.070 T is needed. If the area of the rotating coil is 120 cm2, a) How many turns do you need? b) What would be the peak output voltage? c) What would be the magnetic field needed to step the voltage up to 20 Varrow_forward
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What is Electromagnetic Induction? | Faraday's Laws and Lenz Law | iKen | iKen Edu | iKen App; Author: Iken Edu;https://www.youtube.com/watch?v=3HyORmBip-w;License: Standard YouTube License, CC-BY