Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
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Chapter 14, Problem 42P
To determine
Turn ratio for each switch position and number of turn for the seconadry
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Chapter 14 Solutions
Electronics Fundamentals: Circuits, Devices & Applications
Ch. 14 - An ideal transformer delivers the same power to...Ch. 14 - Dots on the schematic symbol of a transformer show...Ch. 14 - A step-down transformer has more turns in the...Ch. 14 - The primary current in a transformer is always...Ch. 14 - Prob. 5TFQCh. 14 - Impedance-matching transformers allow maximum...Ch. 14 - Prob. 7TFQCh. 14 - A balun is a form of impedance-matching...Ch. 14 - Power transformers are typically rated in VA...Ch. 14 - Transformer efficiency is the ratio of output...
Ch. 14 - A transformer is used for dc voltages ac voltages...Ch. 14 - Which one of the following is affected by the...Ch. 14 - Prob. 3STCh. 14 - Prob. 4STCh. 14 - Prob. 5STCh. 14 - Prob. 6STCh. 14 - Prob. 7STCh. 14 - Prob. 8STCh. 14 - Prob. 9STCh. 14 - Prob. 10STCh. 14 - Prob. 11STCh. 14 - Prob. 12STCh. 14 - Prob. 13STCh. 14 - Prob. 14STCh. 14 - Prob. 1PCh. 14 - Prob. 2PCh. 14 - What is the turns ratio of a transformer having...Ch. 14 - Prob. 4PCh. 14 - Prob. 5PCh. 14 - If 120 V ac are connected to the primary of a...Ch. 14 - Prob. 7PCh. 14 - Prob. 8PCh. 14 - For each transformer in Figure 14-46, draw the...Ch. 14 - Prob. 10PCh. 14 - Prob. 11PCh. 14 - How many primary volts must be applied to a...Ch. 14 - Prob. 13PCh. 14 - Prob. 14PCh. 14 - Prob. 15PCh. 14 - If RL is doubled in the circuit of Figure...Ch. 14 - Prob. 17PCh. 14 - Determine the following quantities in Figure...Ch. 14 - Prob. 19PCh. 14 - Prob. 20PCh. 14 - Prob. 21PCh. 14 - Prob. 22PCh. 14 - For the circuit 14-54, find the turns ratio...Ch. 14 - Prob. 24PCh. 14 - Prob. 25PCh. 14 - Prob. 27PCh. 14 - Prob. 28PCh. 14 - Prob. 29PCh. 14 - Prob. 30PCh. 14 - Prob. 31PCh. 14 - Prob. 32PCh. 14 - Prob. 33PCh. 14 - Prob. 34PCh. 14 - Prob. 35PCh. 14 - Prob. 36PCh. 14 - Prob. 37PCh. 14 - Prob. 38PCh. 14 - For the loaded, tapped-secondary transformer in...Ch. 14 - Prob. 40PCh. 14 - Determine the voltage measured by each voltmeter...Ch. 14 - Prob. 42PCh. 14 - Prob. 43PCh. 14 - Prob. 44PCh. 14 - Prob. 45PCh. 14 - Prob. 46PCh. 14 - Prob. 47PCh. 14 - Prob. 49P
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- Question:4 A Step-down transformer is given and calculate 5:1 120 V 60 Hz V2 i k2 i. Peak load and D.C. load voltage ii. D.C. Currentarrow_forwardQuestion 9 If the turn ratio of a step-up transformer is 1:15 and the full-load secondary current is 300 A, the primary current would be: O A. 20 A O B. 450 A O C.4.5 kA O D. 45 kA O E. None of the other choices are correctarrow_forwardWhen there is no load connected on the secondary side, of a transformer the current in the secondary side is Select one: O a. Maximum O b. Zero Oc. Minimum O d. Onearrow_forward
- To prevent the harmful voltage induction by the series winding, the transformer primary must before opening or unloading None never be open be short be Openarrow_forwardA IcA The voltage ratio in the following transformer equals to, Inc VAN/N1 Van/N2 Van/N1 Vab/N2arrow_forwardWhat are the different losses across the transformer? Which losses are variable? What turns ratio isrequired on the secondary of a transformer if the primary has 400 turns? The applied voltage is 220VAC and the secondary voltage is 11 V.arrow_forward
- If the turn ratio of the transformer is 4:1, it means Secondary voltage is 4 times greater than the primary voltage For every 4 turns on primary, there is one turn on secondary Primary current is 4 times greater than the secondary current There are 4 turns on primary one turn on secondaryarrow_forward1. An ideal transformer with a 450 turn primary connected to a 600 V, 60 Hz supply line needs to output 240 V from the secondary. A 100 load is connected across the secondary. How many turns the secondary must have to output the desired voltage? What is the current through the load? What is the current drawn through the primary?arrow_forwardA transformer has a turn ratio of 1: 10. A resistance of 2000 ohms is connected across the secondary terminals. The resistance offered to the current in primary winding will bearrow_forward
- The table below shows some performance parameters of a certain power transformer. Full-load voltage regulation Full-load copper loss Load power factor 5% 0.5 Lagging Zero voltage regulation is obtained at a load power factor of: 0.9176 leading 08 leading 0.397 lagging 2% 0.703 leadingarrow_forwardA step up auto transformer has its winding consisting of two portions one with 60 turns and the other has 89 turns. The 50 turns is connected to a 240V, 60Hz ac source. A load of 21 ohms is connected across the whole winding of 150 turns. Find the primary winding current in amperesarrow_forwardCombination circuit What is the current? What voltage across each load ?arrow_forward
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