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

Author Question: An AC series circuit contains a resistor of 20 W, an inductor of 50 mH, and a variable capacitor. If ... (Read 109 times)

asmith134

  • Hero Member
  • *****
  • Posts: 576
on: Jul 28, 2018
An AC series circuit contains a resistor of 20 W, an inductor of 50 mH, and a variable capacitor. If the frequency of the applied voltage is 500 Hz, to what setting should the capacitor be set if resonance is achieved?
 a. 2.4 F
  c. 2.0 F
  b. 3.4 F
  d. 0.8 F

Question 2

If the intensity of a sound is increased by a factor of 1000, how is the decibel level changed? The new decibel level will be:
 a. three units greater.
  c. thirty times greater.
  b. ten times greater.
  d. twenty units greater.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

janeli

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


asmith134

  • Hero Member
  • *****
  • Posts: 576
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


janeli

  • Sr. Member
  • ****
  • Posts: 346
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Upper GI series. Upper GI series.
Eleanor Antin, My Kingdom Is the Right Size, from the series The King of Solana Beach. Eleanor Antin, My Kingdom Is the Right Size, from the series The King of Solana Beach.
Negative feedback control of a regulated variable. Negative feedback control of a regulated variable.
A typical heated zirconia oxygen sensor, showing the sensor signal circuit that uses the outer ... A typical heated zirconia oxygen sensor, showing the sensor signal circuit that uses the outer ...
Variable and absorption costing, explaining operating-income differences. Variable and absorption costing, explaining operating-income differences.
What is the total resistance of the circuit in Figure 1? 150 What is the total resistance of the circuit in Figure 1? 150
Video: Aneurysm

For a complete list of videos, visit our video library