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

Author Question: A light bulb with a tungsten filament is attached to a source of variable voltage. As the voltage is ... (Read 195 times)

Bob-Dole

  • Hero Member
  • *****
  • Posts: 547
on: Jul 28, 2018
A light bulb with a tungsten filament is attached to a source of variable voltage. As the voltage is increased on the bulb,
 a. the bulb's resistance decreases.
  b. the bulb's resistance increases.
  c. the power dissipated remains constant.
  d. the current in the bulb decreases.

Question 2

A syringe has an inside radius of its barrel of 0.50 cm and at the opening at the end of the needle the radius is 1.0 mm. If a force F is applied to the plunger, what is the force produced at the opening of the needle?
 a. 5F
  c. F/5
  b. 25F
  d. F/25


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Zack0mack0101@yahoo.com

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

D


Bob-Dole

  • Member
  • Posts: 547
Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

fatboyy09

  • Member
  • Posts: 358
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

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?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

(A) Scratch test; patient is exposed to allergens through a light scratch on the skin; (B) Positive (A) Scratch test; patient is exposed to allergens through a light scratch on the skin; (B) Positive
Running time on 100-meter sprint for men and women master athletes increases with age. Source: Korho Running time on 100-meter sprint for men and women master athletes increases with age. Source: Korho
Apply the cold source, and ask for immediate feedback. Conform the cold source to the shape of the ... Apply the cold source, and ask for immediate feedback. Conform the cold source to the shape of the ...
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 ...
Variable expressivity as shown in flies homozygous for the eyeless mutation in Drosophila Variable expressivity as shown in flies homozygous for the eyeless mutation in Drosophila
Photoreceptors and UV Light Photoreceptors and UV Light
Video: Definition of heart rate

For a complete list of videos, visit our video library