Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 35, Problem 34SP
The primary of an ideal transformer having negligible losses has 200 times the number of turns as the secondary. If the input power is 200 W ac, what is the output power?
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An ideal step-up transformer with turn ratio 1:30 is supplied with an input power of 120 W. If the output voltage is 210 V, calculate the output power and input current.
The primary winding of an ideal transformer is wound with 550 turns and is connected to a 220V rms supply. The secondary winding has a voltage is 20V rms and is terminated by a resistance of 200 Ω.
Calculate the current flowing in the primary winding.
The primary winding of an ideal transformer is wound with 550 turns and is connected to a 220V rms supply. The secondary winding has a voltage is 20V rms and is terminated by a resistance of 200 Ω. Calculate to find the current flowing in the primary winding.
Chapter 35 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 35 - 14. An ammeter in a 60.0-Hz circuit reads 2.50 A....Ch. 35 - 15. Suppose the electrical power in an ac system...Ch. 35 - 16. The ac current in a 60.0-Hz circuit has an...Ch. 35 - 17. A coil possessing an inductance of 0.400 H is...Ch. 35 - 18. A 420-mF capacitor is in a 60.0-Hz circuit....Ch. 35 - Prob. 19SPCh. 35 - 20. A voltmeter reads 80.0 V when it is connected...Ch. 35 - 21. An ac current in a 10 Ω resistance produces...Ch. 35 - 22. A 40.0-Ω resistor is connected across a 15.0-V...Ch. 35 - Prob. 23SP
Ch. 35 - .
24. Solve Problem 35.22 if the 40.0-Ω resistor...Ch. 35 - 25. A coil has resistance 20 Ω and inductance 0.35...Ch. 35 - 26. A current of 30 mA is supplied to a 4.0-µF...Ch. 35 - 27. A coil has an inductance of 0.100 H and a...Ch. 35 - 28. A 10.0-µF capacitor is in series with a 40.0-Ω...Ch. 35 - 29. A circuit having a resistance, an inductance,...Ch. 35 - Prob. 30SPCh. 35 - 31. A circuit has a resistance of 11 Ω, a coil of...Ch. 35 - 32. A 120-V, 60-Hz power source is connected...Ch. 35 - 33. A coil of negligible resistance is connected...Ch. 35 - 34. The primary of an ideal transformer having...Ch. 35 - 35. The primary of an ideal transformer having...Ch. 35 - Prob. 36SPCh. 35 - Prob. 37SPCh. 35 - 38. A step-down transformer is used on a 2.2-kV...Ch. 35 - 39. A step-down transformer is used on a 1650-V...Ch. 35 - 40. A step-up transformer operates on a 110-V line...
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- Will a transformer work if the input is a dc voltage?arrow_forwardCan the instantaneous power output of an ac source ever be negative? Can the average power output be negative?arrow_forwardAn emf of 9.7 Ă— 10-3 V is induced in a coil while the current in a nearby coil is decreasing at a rate of 2.7 A/s. What is the mutual inductance of the two coils?arrow_forward
- Suppose a coil has a self-inductance of 20.0 H and a resistance of 200 . What (a) capacitance and (b) resistance must be connected in series with the coil to produce a circuit that has a resonant frequency of 100 Hz and a Q of 10?arrow_forwardAn emf of 0.40 V is induced across a coil when the current through it changes uniformly from 0.10 to 0.60 A in 0.30 s. What is the self-inductance of the coil?arrow_forwardSuppose you wanted to design an LC circuit with a frequency of 0.01 Hz. What problems might you encounter?arrow_forward
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