This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Where does the current come from that moves the needle on an analog volt meter? A) The volt meter ... (Read 98 times)

bobbysung

  • Hero Member
  • *****
  • Posts: 519
on: Jul 26, 2018
Where does the current come from that moves the needle on an analog volt meter?
 
  A) The volt meter uses induction to produce a small electric current using the magnetic field surrounding the wire it is testing.
  B) The battery inside the meter
  C) No current is required to move the needle on an analog volt meter.
  D) The meter uses a small amount of current from the circuit it is testing.

Question 2

Why are piercing valves used in refrigerant work?
 
  A) To access a sealed system B) To allow a constant evacuation
  C) To install a gauge manifold set D) To remove a process tube


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nguyenhoanhat

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 26, 2018
Answer to Question 1

D

Answer to Question 2

A


bobbysung

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Jul 26, 2018
TY


nguyenhoanhat

  • Sr. Member
  • ****
  • Posts: 332
Reply #3 on: Jul 26, 2018
You're welcome


« previous next »
 

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Retrograde pyelogram. A contrast medium is injected into the ureter using a cystoscope, and the X-ra Retrograde pyelogram. A contrast medium is injected into the ureter using a cystoscope, and the X-ra
Average Hourly Earnings of U.S. Workers in Current and Constant Dollars Average Hourly Earnings of U.S. Workers in Current and Constant Dollars
Weak valve springs will produce a normal reading at idle, but as engine speed increases, the needle ... Weak valve springs will produce a normal reading at idle, but as engine speed increases, the needle ...
An ECT sensor being tested using a digital meter set to DC volts. A chart showing the voltage ... An ECT sensor being tested using a digital meter set to DC volts. A chart showing the voltage ...
Find the voltage, current and power for each resistor in the circuit below Find the voltage, current and power for each resistor in the circuit below
A particle (q = -4.0 mC, m = 5.0 mg) moves in a uniform magnetic field with a velocity having a ... A particle (q = -4.0 mC, m = 5.0 mg) moves in a uniform magnetic field with a velocity having a ...
Video: Cerebral Cortex Animation

For a complete list of videos, visit our video library