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

Author Question: A 4.0-W resistor has a current of 3.0 A in it for 5.0 min. How many electrons pass through the ... (Read 45 times)

mcmcdaniel

  • Hero Member
  • *****
  • Posts: 550
on: Jul 28, 2018
A 4.0-W resistor has a current of 3.0 A in it for 5.0 min. How many electrons pass through the resistor during this time interval?
 a. 7.5  1021
  b. 5.6  1021
  c. 6.6  1021
  d. 8.4  1021
  e. 2.1  1021

Question 2

A rod of 2.0-m length and a square (2.0 mm  2.0 mm) cross section is made of a material with a resistivity of 6.0  10-8 W  m. If a potential difference of 0.50 V is placed across the ends of the rod, at what rate is heat generated in the rod?
 a. 3.0 W
  b. 5.3 W
  c. 8.3 W
  d. 1.3 W
  e. 17 W


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ebonylittles

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

C


mcmcdaniel

  • Member
  • Posts: 550
Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

vickybb89

  • Member
  • Posts: 347
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Benzene delocalized electrons Benzene delocalized electrons
Altamont Pass Wind Farm in California Altamont Pass Wind Farm in California
To reverse the direction of operation, the polarity of the current through the motor is reversed. To reverse the direction of operation, the polarity of the current through the motor is reversed.
Circular two-handed petrissage. Tissues are picked up between the hands as they pass each other. Circular two-handed petrissage. Tissues are picked up between the hands as they pass each other.
At 19 months, Merr would clearly pass the 17-month item on the Bayley Scales At 19 months, Merr would clearly pass the 17-month item on the Bayley Scales
What is the total number of valence electrons in a silicate ion, SiO32-? What is the total number of valence electrons in a silicate ion, SiO32-?
Video: Oxygen - hemoglobin dissociation curve & Hemoglobin's affinity with oxygen - acidity

For a complete list of videos, visit our video library