The core of a transformer is laminated because

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionkb4ale034iqs3cn8d0eokmcm0k08j510): 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

The core of a transformer is laminated because

Home » Electricity and Magnetism » Alternating Current » Question

The core of a transformer is laminated because

1. the weight of the transformer may be reduced
2. rusting of the core may be prevented
3. ratio of voltage in primary and secondary may be increased
4. energy losses due to eddy currents may be minimised

Correct Option: D

When there is change of flux in the core of a transformer due to change in current around it, eddy current is produced. The direction of this current is opposite to the current which produces it, so it will reduce the main current. We laminate the core so that flux is reduced resulting in the reduced production of eddy current.