Search Colleges, Courses, Exams, Questions and Articles

Ask a query on 8879100846 Ask Login | Sign Up

 

 

› Ask & Answer › Question

At very high frequencies, the effective impendance of the given circuit will be_______ Ω .  

0 5 Views | Posted a month ago
Asked by Shiksha User

  • 1 Answer

  • V

    Answered by

    Vishal Baghel | Contributor-Level 10

    a month ago

    X c = 1 ω c , X L = ω L so at very high frequencies capacitor behaves as conduct and inductor behaves as open circuit. The effective impedance will be 2 Ω .

     

Similar Questions for you

Power factor of series LCR circuit at resonance is
V
Vishal Baghel

At resonance VL = VC

⇒ c o s ? = V R V R 2 + ( V L − V C ) 2 = 1

An electric bulb and a capacitor are connected in series with an AC source. On increasing the frequency of the source, the brightness of the bulb:
V
Vishal Baghel

X C = 1 ω C

On increasing ω  XC decreases so Z decreases, current in circuit increases.

A direct current of 4 A and an alternating current of 4 A flows through two identical resistors. The ratio of heat produced in the two resistances in same time interval will be
V
Vishal Baghel

H D . C . H A . C . = I 2 R I r m s 2 R = 1

The value of alternating emf (E) in the given circuit will be
V
Vishal Baghel

E = V R 2 + ( V L − V C ) 2

E = ( 6 0 ) 2 + ( 1 0 0 − 2 0 ) 2

E = 100V

Figure shows a circuit that contains four identical resistors with resistance R = 2 . 0 Ω ,  two identical inductors with inductance L = 2.0mH and an ideal battery with emf E = 9V. The current ‘i’ just after switch ‘S’ is closed will be:
V
Vishal Baghel

R = 2 Ω

L = 2 mH

E = 9V

i = ε 2 R = 9 v 4 Ω = 2 . 2 5 A

Just after the switch ‘S’ is closed, the inductor acts as open circuit.

Get authentic answers from experts, students and alumni that you won't find anywhere else

Sign Up on Shiksha

On Shiksha, get access to

  • 65k Colleges
  • 1.2k Exams
  • 688k Reviews
  • 1800k Answers

Learn more about...

Share Your College Life Experience

Write a Review

Didn't find the answer you were looking for?

Search from Shiksha's 1 lakh+ Topics

or

Ask Current Students, Alumni & our Experts

Ask Now
Community GuidelinesUser Points System
QuestionsDiscussionsTags
×
×

This website uses Cookies and related technologies for the site to function correctly and securely, improve & personalise your browsing experience, analyse traffic, and support our marketing efforts and serve the Core Purpose. By continuing to browse the site, you agree to Privacy Policy and Cookie Policy.

Need guidance on career and education? Ask our experts

Characters 0/140

The Answer must contain atleast 20 characters.

Add more details

Characters 0/300

The Answer must contain atleast 20 characters.

Keep it short & simple. Type complete word. Avoid abusive language. Next

Your Question

Edit

Add relevant tags to get quick responses. Cancel Post