Page 8 of 16

Re: Circuit Lab B/C

Posted: December 13th, 2018, 8:33 am
by Crimesolver
Ohhh okay :)

How do you find the strength of an electromagnetic field?

What would be the strength of the magnetic field if the electromagnet was 200 cm, has 10 amps running through it, and has 400 coils?

Re: Circuit Lab B/C

Posted: December 16th, 2018, 8:05 am
by MattChina
Crimesolver wrote:Ohhh okay :)

How do you find the strength of an electromagnetic field?

What would be the strength of the magnetic field if the electromagnet was 200 cm, has 10 amps running through it, and has 400 coils?
H=IN/L, 200 ampere per meter

Re: Circuit Lab B/C

Posted: December 18th, 2018, 6:06 pm
by Crimesolver
MattChina wrote:
Crimesolver wrote:Ohhh okay :)

How do you find the strength of an electromagnetic field?

What would be the strength of the magnetic field if the electromagnet was 200 cm, has 10 amps running through it, and has 400 coils?
H=IN/L, 200 ampere per meter
Nice, your turn-

Re: Circuit Lab B/C

Posted: January 3rd, 2019, 5:16 pm
by UTF-8 U+6211 U+662F
Reviving... what does Coulomb's law state?

Re: Circuit Lab B/C

Posted: January 7th, 2019, 2:35 pm
by MattChina
UTF-8 U+6211 U+662F wrote:Reviving... what does Coulomb's law state?
The magnitude of the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them.

Re: Circuit Lab B/C

Posted: January 7th, 2019, 5:46 pm
by UTF-8 U+6211 U+662F
MattChina wrote:
UTF-8 U+6211 U+662F wrote:Reviving... what does Coulomb's law state?
The magnitude of the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them.
Yep, your turn

Re: Circuit Lab B/C

Posted: January 7th, 2019, 5:57 pm
by MattChina
What cases do kirchoff's law not apply?

Re: Circuit Lab B/C

Posted: January 7th, 2019, 5:59 pm
by UTF-8 U+6211 U+662F
MattChina wrote:
What cases do kirchoff's law not apply?
They always apply?

Re: Circuit Lab B/C

Posted: January 7th, 2019, 6:32 pm
by MattChina
UTF-8 U+6211 U+662F wrote:
MattChina wrote:
What cases do kirchoff's law not apply?
They always apply?
No, there are some cases where they don't apply. With KVL, it doesn't apply with a varying magnetic field, and with KCL, it doesn't apply when the voltage source has a very high frequency. Anyways, your turn!

Re: Circuit Lab B/C

Posted: January 7th, 2019, 7:20 pm
by UTF-8 U+6211 U+662F
MattChina wrote:
UTF-8 U+6211 U+662F wrote:
MattChina wrote:
What cases do kirchoff's law not apply?
They always apply?
No, there are some cases where they don't apply. With KVL, it doesn't apply with a varying magnetic field, and with KCL, it doesn't apply when the voltage source has a very high frequency. Anyways, your turn!
Whoops...

Calculate the electric field strength 1 micrometer from a proton (e=1.6e-19 C).

If a proton is moving east at 300 m/s and experiences an acceleration of 2.6e10 m/s^2 south, what is the strength and direction of the B-field (the mass of a proton is 1.67e-27 kg)?