Which statement is true about magnetic poles? Question 20 options: all magnets have two poles Any magnet can have two north poles. Any magnet has only one pole. Any magnet can have two south poles.

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

What are the north and south poles of a solenoid change with?