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 108 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
Thanks for the timely response, appreciate it

flexer1n1

  • Member
  • Posts: 373
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Young adults increase in self-esteem between the ages of 18 and 25, according to this longitudinal s Young adults increase in self-esteem between the ages of 18 and 25, according to this longitudinal s
Meta-analysis of 18 studies shows that aerobic exercise causes better performance in older adults on Meta-analysis of 18 studies shows that aerobic exercise causes better performance in older adults on
Andy Warhol, San Francisco Silverspot, from the series Endangered Species Andy Warhol, San Francisco Silverspot, from the series Endangered Species
The demand for cheap coal to generate electrical power is rising The demand for cheap coal to generate electrical power is rising
Macaroni and cheese provides a double source of riboflavin from the pasta and the cheese Macaroni and cheese provides a double source of riboflavin from the pasta and the cheese
Sequence Series Arithmatic Progression Problem Sequence Series Arithmatic Progression Problem
Video: Net filtration pressure and lymph formation, edema & blood velocity

For a complete list of videos, visit our video library