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 28 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
Great answer, keep it coming :)

ashely1112

  • Member
  • Posts: 347
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Concentric double-pipe heat exchanger for counter-current flow Concentric double-pipe heat exchanger for counter-current flow
Symporter protein in the loop of Henle: (a) normal reabsorption of inhibition of the Na+, K+, and ... Symporter protein in the loop of Henle: (a) normal reabsorption of inhibition of the Na+, K+, and ...
Normal and Impaired Vision Normal and Impaired Vision
Find the voltage, current and power for each resistor in the circuit below Find the voltage, current and power for each resistor in the circuit below
A rigid circular loop has a radius of 0.20 m and is in the xy-plane. A clockwise current I is ... A rigid circular loop has a radius of 0.20 m and is in the xy-plane. A clockwise current I is ...
In 2000, the average charge of tax preparation was 95 . Assuming a normal distribution and a ... In 2000, the average charge of tax preparation was 95 . Assuming a normal distribution and a ...
Video: HIV replication/ Replication cycle of HIV

For a complete list of videos, visit our video library