Question

A current of 3.20 A in a solenoid produces a magnetic field of 4.0 times 10 to the power of negative 3 end exponent T. The current is changed to 6.40 A. What is the magnitude of the magnetic field after the change?

2.0 times 10 to the power of negative 3 end exponent T
8.0 times 10 to the power of negative 3 end exponent T
16 times 10 to the power of negative 3 end exponent T
1.0 times 10 to the power of negative 3 end exponent T

Answer 1

@Shadow

Answer 2

You would need to determine the relationship that current has with the magnetic field. My guess is that it is direct. What did your lessons say about it?

Answer 3

2.0 times 10 to the power of negative 3 end exponent T
-Inverse
8.0 times 10 to the power of negative 3 end exponent T
-Direct
16 times 10 to the power of negative 3 end exponent T
-Direct Square
1.0 times 10 to the power of negative 3 end exponent T
-Inverse Square

Answer 4

Since the current increased by a factor of 2

Answer 5

No idea, x.x
So I'll take your word it's direct >~<

Answer 6

That was more of an example, not even a guess xD

Answer 7

It could equally any of them

Answer 8

YOLO

Answer 9

._.

Answer 10

I guess let me know how it goes

Answer 11

Indeed, 1 more question

Answer 12

It was right