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

Author Question: A series circuit consists of a 100 V DC power source, a 100 resistor, and a variable resistor of ... (Read 101 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
on: Aug 6, 2020

Question 1

A resistor of unknown resistance and a 15-Ω resistor are connected across a 20-V emf in such a way that a 2.0 A current is observed in the emf. What is the value of the unknown resistance?

◦
75 Ω

◦
12 Ω

◦
7.5 Ω

◦
30 Ω

◦
5.0 Ω


Question 2

A series circuit consists of a 100 V DC power source, a 100 Ω resistor, and a variable resistor of resistance R, which varies from 0 to 100 Ω. The current in the circuit is



◦
directly proportional to R.

◦
inversely proportional to R.

◦
directly proportional to (100 Ω + R).

◦
inversely proportional to (100 Ω + R).

◦
neither directly nor inversely proportional to R or to (100 Ω + R).
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by tfester on Aug 6, 2020

missalyssa26

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Aug 6, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


tfester

  • Member
  • Posts: 534
Reply 2 on: Aug 6, 2020
Great answer, keep it coming :)

tandmlomax84

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

The effective temperature, or black body temperature, of the Sun (5777 K) is the temperature a black The effective temperature, or black body temperature, of the Sun (5777 K) is the temperature a black
Lilly Martin Spenser’s painting, Domestic Happiness (1844), reflects the change in attitudes toward Lilly Martin Spenser’s painting, Domestic Happiness (1844), reflects the change in attitudes toward
Variable Gases: Carbon Dioxide Variable Gases: Carbon Dioxide
Remove cold source, and check the knee for changes. Notice skin color and changes in swelling around ... Remove cold source, and check the knee for changes. Notice skin color and changes in swelling around ...
Find the derivative using the power rule Q2 Find the derivative using the power rule Q2
Use the power rule to find derivative Use the power rule to find derivative
Video: Chemical Buffers - protein buffer, phosphate buffer system and bicarbonate buffer system

For a complete list of videos, visit our video library