lkbrown1555
lkbrown1555 lkbrown1555
  • 24-11-2020
  • Physics
contestada

An electromagnet needs a magnetic metal core. To produce a magnetic field,
what else is required?

A second metal core?
A solenoid with current or no current running through it? Or a permanent magnet?

Respuesta :

mbajonero65 mbajonero65
  • 24-11-2020
A second metal core i think
Answer Link
dribblzcross
dribblzcross dribblzcross
  • 11-12-2020

Answer:solenoid with current running through it

Explanation:just took the test

Answer Link

Otras preguntas

HELP PLEASE ANSWER FULL QUESTION
C.18 of the houses are for sale How many houses are for sale?​
Video is now a permanent part of journalism. Based on what you know about the development of the photojournalism, which BEST explains how this became popular? G
On October 1, 2018, Bullseye Company sold 250,000 gallons of diesel fuel to Schmidt Co. at $3 per gallon. On November 8, 2018, 150,000 gallons were delivered; o
hii, this geometry, please help haha!!
Find the unit rate from the graph :
On the coloring sheet, thd a ratio is equivalent to 3/10.
What percent is: x of y?
See the picture below please help me and thank you.
A rental car cost 36 for one day plus additional 0.42 per mile. Simplify the expression 36 + 0.42( 78) to determine the cost of renting a car and driving it 78