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

Author Question: A resistor operated at 120 V dc is rated at 1.40 kW. (a) What is the normal operating current ... (Read 71 times)

BRWH

  • Hero Member
  • *****
  • Posts: 553
on: Jul 29, 2018
A resistor operated at 120 V dc is rated at 1.40 kW.
 
  (a) What is the normal operating current through the resistor?
  (b) What is the resistance of the resistor?

Question 2

The eyepiece of a compound microscope has a focal length of 2.50 cm and the objective has a focal length of 1.60 cm. The two lenses are separated by 15.0 cm. The microscope is used by a person with normal eyes (near point at 25 cm).
 
  What is the angular magnification of the microscope?
  A) 195 x B) 125 x C) 94 x D) 234 x E) 78 x


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ptupou85

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 11.7 A (b) 10.3

Answer to Question 2

E


BRWH

  • Member
  • Posts: 553
Reply 2 on: Jul 29, 2018
:D TYSM

kilada

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

An Oral, Battery-Operated Thermometer An Oral, Battery-Operated Thermometer
Appendicitis. (a) A normal appendix. (b) An inflamed appendix in appendicitis. Appendicitis. (a) A normal appendix. (b) An inflamed appendix in appendicitis.
Refraction; A, normal eye; B, myopia; C, hyperopia. Refraction; A, normal eye; B, myopia; C, hyperopia.
2 Several oxygen-binding curves: for normal hemoglobin 2 Several oxygen-binding curves: for normal hemoglobin
Normal Distribution of IQ Scores Normal Distribution of IQ Scores
Red blood cells with normal hemoglobin, like the three similar ones, are smooth and round Red blood cells with normal hemoglobin, like the three similar ones, are smooth and round
Video: Labor and Childbirth - The Three Stages of Labor: Dilation, Expulsion & Placental مراحل الولادة

For a complete list of videos, visit our video library