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 9ST
To determine
Thereflected resistance seen by the source when a load resistance of
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Check out a sample textbook solutionStudents have asked these similar questions
*
For the following circuit if the
secondary voltage of the
transformer is 20V rms, the output
voltage is
ZV
HE
+H
C₁
C3
DA
vor
(000000000)
+
Vm
O 55.5 V
O 123.2 V
O 113.1 V
O 130.1 V
D₁
C₂
HE
+
2 Vm
D₂
D3
+
Ca
HH
2V
The primary current of a 68 kVA, 1586 V/ 264 V, 50 Hz, single-phase transformer is
a-257.58 A
b-0.04 A
c-4.29 A
d-42.88 A
10. With a step-up transformer with a turns ratio of
6 and a primary voltage of 100V, what is the
voltage on the secondary?
6 V
60 V
6000 V
600 V
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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- When the turns ratio of a transformer is 20 and the primary ac voltage is 12 V, the secondary voltage is 12 V 120 V 240 V 2,400 Varrow_forwardQuestion 2 A voltage of 100VAC is shown on the oscilloscope. What is the peak to peak voltage? O 70.7V O 144V O 283V O 63.7V Question 3 What is the efficiency of the transformer? Is-10A Vp 120V >RL-120 O 1p-12.5Aarrow_forwardO Van lags Vbn. and V bn lags Ven- O Van lags Vbn, and Vin leads Ven- Question 11 A transformer with a primary voltage V = 15Z15° V has a turns ratio of 1:5. What is the secondary voltage, V2? O 75/75° V O 3/15° V O 3275° V O 75/15° V PrtScn F5 F6 F7arrow_forward
- A transformer has a turn's ratio of 1:6. The primary current is 18A. What is the secondary current? Possible answers 3A 108A 18A 0Aarrow_forwardIf 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_forwardIn transformer, the power will with decrease in current. O be doubled O decreases O remain same O increases Lin dalta ncrocs 42E V 50 U-cunny Than the tetal Three csilconch hp 近arrow_forward
- * For the following circuit if the secondary voltage of the transformer is 20V max, the output voltage is 博 D₂ C₂ 2V 000 000000000 ++ JE C₁ HE - 30V 20V 40V 35V D₁ 2V= +arrow_forwardIn transformer, the power will with decrease in current. decreases O be doubled remain same O increasesarrow_forwardIn the transformer if the losses are less thenarrow_forward
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