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 6ST
To determine
The turns ratio of the transformers.
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When the turns ratio of a transformer is 10 and the primary ac voltage is 6
V. the secondary voltage is
The thickness of laminations used in a
transformer is usually
0.4 mm to 0.5 mm
O 14 mm to 15 mm
O 25 mm to 40 mm
4 mm to 5 mm
In transformer, the eddy current loss will
with increase in load.
O increases
O decreases
O be zero
O remains same
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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- In transformer construction, a small portion of the core is occupied by winding.arrow_forwardA Transformer has turns ratio of 2:15. When the secondary turns is 300, what is the primary turns? 40 400 2250arrow_forwardIn transformer, the power will with increase in voltage. O increases decreases O be doubled O remain samearrow_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_forwardIn transformer, the power will with increase in current. O be doubled decreases O increases O remain samearrow_forwardIn transformer, open circuit test is used to determinearrow_forward
- A transformer with a 240-V ac primary voltage and a 6:1 turns ratio has an output voltage of O 1,440 V 240 V O 40 V O6 Varrow_forwardIn transformer, the power will with decrease in voltage. increases decreases O remain same O be doubledarrow_forwardFor the following circuit if the secondary voltage of the transformer is 20V rms, the PIV of the diodes are ZV +1H +1 C3 D₂ D₁ 000 000000000 + C₁ O 55 V O 61.61 V 33 V O56.56 V C₂ HE 2V + m D3 + Ca H 2Varrow_forward
- What will be the losses of a transformer if it is working in step up mode compared to its losses in step down mode less more same none of optionarrow_forwardFor the following circuit if the secondary voltage of the transformer is 20V rms, the output voltage and the PIV of the diodes are V. 2 Vm C3 D, D2 D3 A D4 C2 C4 + 2Vm 2Vm O 130.1 V, 55 V O 113.1 V, 56.56 V 123.2, 61.61 V 55.5 V, 33 Varrow_forward10. Determine the peak-to-peak ripple and de output voltages in Figure 5. The transformer has a 36 V rms secondary voltage rating, and the line voltage has a frequency of 60 Hz. A R surge 120 Vrms 00000 ellle B Figure 5. www 10 Ω C 100 μF www R₂ 3.3 ΚΩarrow_forward
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