In the circuit shown below | V0 | = 1 V to a certain set

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_session9p69mkr50vfqatmlrv4scmrkdghc4p03): failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 176

Backtrace:

File: /var/www/interviewmania.com/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 143

Backtrace:

File: /var/www/interviewmania.com/index.php
Line: 315
Function: require_once

In the circuit shown below | V0 | = 1 V to a certain set

Home » Analog Electronic Circuits » Analog electronics circuits miscellaneous » Question

In the circuit shown below | V₀ | = 1 V to a certain set of values of ω, R and C. | V₀ | will remain as 1 V even if:

1. None of these
2. ω is halved
3. R is halved
4. C is doubled

Correct Option: A

The given circuit represent all pass filter.
T.F. = H (j) = 1 + (RC)² = 1
1 + (RC)²

when, R and C are changed by the same magnitude the transfer function is unchanged.
Hence alternative (A) is the correct choice.