« previous next »

Author Question: An oscillator that uses a transformer to achieve the 180 voltage phase shift required for ... (Read 67 times)

cool

  • Hero Member
  • *****
  • Posts: 570
on: Jul 28, 2018
An oscillator that uses a transformer to achieve the 180 voltage phase shift required for oscillation is known as a
 
  A) Hartley oscillator B) Wien-bridge oscillator
  C) Colpitts oscillator D) Armstrong oscillator

Question 2

When current is applied to the coil of an NC relay,
 
  A) it opens. B) it closes.
  C) its contacts touch. D) it opens and its contacts touch.


Kdiggy

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

The Doppler Shift The Doppler Shift
a) Shift your weight at the end of your reach. b) Avoid overreaching. a) Shift your weight at the end of your reach. b) Avoid overreaching.
Checking the voltage drop between the TP sensor ground and a good engine ground with the ignition ... Checking the voltage drop between the TP sensor ground and a good engine ground with the ignition ...
Acute Phase Proteins Acute Phase Proteins
Mitotic Phase: Metaphase Mitotic Phase: Metaphase
How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C
Video: Introduction to Macular Degeneration

For a complete list of videos, visit our video library