Considering the magnetic field in the center of a current earning loon of wire.

Question

Considering the magnetic field in the center of a current earning loon of wire. The magnetic field will be stronger if... you increase the current you decrease the current you switch the direction of the current The magnetic field will be stronger if... you increase the radius of the loop you decrease the radius of the loop the radius won't affect the field strength For the diagram to the right, indicate the direction of the magnetic field at point P to the right to the left upwards downwards out of the paper into the paper

Explanation / Answer

Magnetic field at the center of the current carryign loop is

B=uoI/2R

1.Answer is You increase the current

Since Magentic field is directly proportional to current

2.

Answer is You Decrease the radius of the loop

Since Magnetic field is inversly proportional to radius.

3.

Into the paper

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