Author Question: An uncharged 30.0-F capacitor is connected in series with a 25.0- resistor, a DC battery, and an ... (Read 76 times)

kodithompson

  • Hero Member
  • *****
  • Posts: 566
An uncharged 30.0-F capacitor is connected in series with a 25.0- resistor, a DC battery, and an open switch. The battery has an internal resistance of 10.0  and the open-circuit voltage across its terminals is 50.0 V.
 
  The leads have no appreciable resistance. At time t = 0, the switch is suddenly closed.
  (a) What is the maximum current through the 25.0- resistor and when does it occur (immediately after closing the switch or after the switch has been closed for a long time)?
  (b) What is the maximum charge that the capacitor receives?
  (c) When the current in the circuit is 0.850 A, how much charge is on the plates of the capacitor?

Question 2

A wire, 6.0 m long, with a mass of 10 g, is under tension. A transverse wave is propagated on the wire, for which the frequency is 280 Hz, the wavelength is 0.60 m, and the amplitude is 8.4 mm.
 
  The time, for a crest of the transverse wave to travel the length of the wire, in ms, is closest to: A) 36
  B) 31
  C) 40
  D) 44
  E) 49



aadams68

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

(a) 1.43 A, immediately after closing the switch
(b) 1500 C (c) 608 C

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

For a complete list of videos, visit our video library