A long, vertical, metallic wire carries downward electric current. (i) What is the direction of the magnetic field it creates at a point 2 cm horizontally east of the center of the wire? north south east west up (ii) What would be the direction of the field if the current consisted of positive charges moving downward instead of electrons moving upward?

a=d/t

a="triangle"v/t

explanation:

a = acceleration

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.

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1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.