COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Question
Chapter 21, Problem 40QAP
To determine
The number of turns in the secondary coil of a step-down transformer.
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Electrical Engineering
A transformer connected to a 120-V (rms) ac line is to supply 13,000 V (rms) for a neon sign.
To reduce shock hazard, a fuse is to be inserted in the primary circuit; the fuse is to blow when the rms current in the secondary circuit exceeds 8.50 mA. (a) What is the ratio of secondary to primary turns of the transformer?(b) What power must be supplied to the transformer when the rms secondary current is 8.50 mA?
Q-20: -An A.C generator has a maximum potential difference output of 150 volt.
a) Find V
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rms
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A. Determine the required inductive reactance.
Number
20
i
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<
L
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Chapter 21 Solutions
COLLEGE PHYSICS
Ch. 21 - Prob. 1QAPCh. 21 - Prob. 2QAPCh. 21 - Prob. 3QAPCh. 21 - Prob. 4QAPCh. 21 - Prob. 5QAPCh. 21 - Prob. 6QAPCh. 21 - Prob. 7QAPCh. 21 - Prob. 8QAPCh. 21 - Prob. 9QAPCh. 21 - Prob. 10QAP
Ch. 21 - Prob. 11QAPCh. 21 - Prob. 12QAPCh. 21 - Prob. 13QAPCh. 21 - Prob. 14QAPCh. 21 - Prob. 15QAPCh. 21 - Prob. 16QAPCh. 21 - Prob. 17QAPCh. 21 - Prob. 18QAPCh. 21 - Prob. 19QAPCh. 21 - Prob. 20QAPCh. 21 - Prob. 21QAPCh. 21 - Prob. 22QAPCh. 21 - Prob. 23QAPCh. 21 - Prob. 24QAPCh. 21 - Prob. 25QAPCh. 21 - Prob. 26QAPCh. 21 - Prob. 27QAPCh. 21 - Prob. 28QAPCh. 21 - Prob. 29QAPCh. 21 - Prob. 30QAPCh. 21 - Prob. 31QAPCh. 21 - Prob. 32QAPCh. 21 - Prob. 33QAPCh. 21 - Prob. 34QAPCh. 21 - Prob. 35QAPCh. 21 - Prob. 36QAPCh. 21 - Prob. 37QAPCh. 21 - Prob. 38QAPCh. 21 - Prob. 39QAPCh. 21 - Prob. 40QAPCh. 21 - Prob. 41QAPCh. 21 - Prob. 42QAPCh. 21 - Prob. 43QAPCh. 21 - Prob. 44QAPCh. 21 - Prob. 45QAPCh. 21 - Prob. 46QAPCh. 21 - Prob. 47QAPCh. 21 - Prob. 48QAPCh. 21 - Prob. 49QAPCh. 21 - Prob. 50QAPCh. 21 - Prob. 51QAPCh. 21 - Prob. 52QAPCh. 21 - Prob. 53QAPCh. 21 - Prob. 54QAPCh. 21 - Prob. 55QAPCh. 21 - Prob. 56QAPCh. 21 - Prob. 57QAPCh. 21 - Prob. 58QAPCh. 21 - Prob. 59QAPCh. 21 - Prob. 60QAPCh. 21 - Prob. 61QAPCh. 21 - Prob. 62QAPCh. 21 - Prob. 63QAPCh. 21 - Prob. 64QAPCh. 21 - Prob. 65QAPCh. 21 - Prob. 66QAPCh. 21 - Prob. 67QAPCh. 21 - Prob. 68QAPCh. 21 - Prob. 69QAPCh. 21 - Prob. 70QAPCh. 21 - Prob. 71QAPCh. 21 - Prob. 72QAPCh. 21 - Prob. 73QAPCh. 21 - Prob. 74QAPCh. 21 - Prob. 75QAPCh. 21 - Prob. 76QAPCh. 21 - Prob. 77QAPCh. 21 - Prob. 78QAPCh. 21 - Prob. 79QAPCh. 21 - Prob. 80QAPCh. 21 - Prob. 81QAPCh. 21 - Prob. 82QAPCh. 21 - Prob. 83QAPCh. 21 - Prob. 84QAPCh. 21 - Prob. 85QAP
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- P33.80a shows a parallel RLC circuit. The instantaneous voltages (and rms voltages) across each of the three circuit elements are the same, and each is in phase with the current in the resistor. The currents in C and L lead or lag the current in the resistor as shown in the current phasor diagram, Figure P33.80b. (a) Show that the rms current delivered by the source is Irms=Vrms[1R2+(C1L)2]12 (b) Show that the phase angle between Vrms and Irms is given by tan=R(1Xc1XL)arrow_forwardA series RLC circuit consists of an 8.00- resistor, 5.00-F capacitor, and a 50.0-mH inductor. A variable frequency source applies an emf of 400 V (rms) across the combination. Assuming the frequency is equal to one-half the resonance frequency, determine the power delivered to the circuit.arrow_forwardAn inductor (L = 400 mH), a capacitor (C = 4.43 F), C1 and a resistor (R = 500 11) are connected in series. A 50.0-Hz AC] source produces a peak current of 250 mA in the circuit, (a) Calculate the required peak voltage Vmax (b) Determine the phase angle by which the current leads or lags the applied voltage.arrow_forward
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