Author Question: A step-up transformer steps up voltage by ten times. If voltage input is 120 volts, voltage output ... (Read 146 times)

BRWH · **on:** Jul 29, 2018

A step-up transformer steps up voltage by ten times. If voltage input is 120 volts, voltage output is

A) 60 V.
B) 120 V.
C) 1200 V.
D) 12000 V.
E) none of the above

Question 2

An iron core in a transformer

A) guides magnetic field lines.
B) shields unwanted external electric or magnetic fields.
C) separates the primary and secondary regions.
D) reduces energy losses.