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

Author Question: A 7.0- resistor is connected across the terminals of a battery having an internal emf of 10 V. If ... (Read 65 times)

dmcintosh

  • Hero Member
  • *****
  • Posts: 517
on: Jul 29, 2018
A 7.0- resistor is connected across the terminals of a battery having an internal emf of 10 V. If there is a 0.50-A current through the circuit, what is the internal resistance of the battery?
 
  A) 13
  B) 20
  C) 10.8
  D) 27.0

Question 2

A thin uniform film of oil that can be varied in thickness covers a sheet of glass of refractive index 1.52.
 
  The refractive index of the oil is 1.64. Light of wavelength 555 nm is shone from air at normal incidence on the film. Starting with no oil on the glass, you gradually increase the thickness of the oil film until the first interference maximum in the reflected light occurs. What is the thickness of the oil film at that instant?
  A) 139 nm
  B) 169 nm
  C) 183 nm
  D) 84.6 nm
  E) 91.3 nm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

k2629

  • Sr. Member
  • ****
  • Posts: 357
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

D


dmcintosh

  • Member
  • Posts: 517
Reply 2 on: Jul 29, 2018
Excellent

kswal303

  • Member
  • Posts: 316
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Location, appearance, and internal structure of the mammalian pancreas. Location, appearance, and internal structure of the mammalian pancreas.
The kidney. Illustration of a sectioned kidney, which reveals its internal features. The kidney. Illustration of a sectioned kidney, which reveals its internal features.
Stromatolite fossil cut away to reveal the internal concentric banding. Stromatolite fossil cut away to reveal the internal concentric banding.
Using a DMM to measure the open-circuit voltage of a battery. Using a DMM to measure the open-circuit voltage of a battery.
bird internal bird internal
Evolution of internal membranes Evolution of internal membranes
Video: Chemical Synapse Animation

For a complete list of videos, visit our video library