This topic contains a solution. Click here to go to the answer

Author Question: A galvanometer has a coil with a resistance of 24.0 . A current of 180 A causes full-scale ... (Read 65 times)

debasdf

  • Hero Member
  • *****
  • Posts: 570
A galvanometer has a coil with a resistance of 24.0 . A current of 180 A causes full-scale deflection. If the galvanometer is to be used to construct an ammeter that deflects full scale for 10.0 A, what shunt resistor is required?
 
  A)
 
  123  
  B)
 
  234  
  C)
 
  342  
  D)
 
  432  
  E)
 
  423

Question 2

An analog ammeter able to have a 0.5 A maximum reading is to be built using a small coil of resistance R = 20 , and full scale deflection at 1 mA. What resistance should be added to this coil and how should it be connected to the coil?
 
  A)
 
  0.08  in parallel
  B)
 
  0.5  in parallel
  C)
 
  0.02  in series
  D)
 
  20.4  in parallel
  E)
 
  0.04  in parallel



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cadimas

  • Sr. Member
  • ****
  • Posts: 362
Answer to Question 1

D

Answer to Question 2

E





 

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

For a complete list of videos, visit our video library