Electrical-Matrix

* The primary and secondary of a transformer are ________ coupled but _______ connected.

A. magnetically, not electrically
B. electrically, not magnetically
C. magnetically, also magnetically
D. electrically, also electrically

Which of the following core has linear characteristics ?

A. CRGO core
B. Iron core
C. Air core
D. Steel core

A DC generator without commutator is a........

A. AC generator
B. DC motor
C. DC generator
D. Induction motor

Hysteresis loss will depends on.......

A. f
B. f²
C. f³
D. f¹'⁶