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YMMMA
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Homework Statement
What causes electric field? What causes magnetic field?
(I) stationary electric fields
(II) moving electric charges
(III) a changing magnetic field
IV) a current-carrying wire
Homework Equations
E=F/q
B=μI/2πr
E electric field
F elecric force
Q charge
B magnetic field
I current
r distanc(radius)
The Attempt at a Solution
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I) Stationary electric charges creates electric fields tht points radially outward/inward.
II) moving electric charges, like current flowing through a wire, cause magnetic fields. Can it produce electric fields as well since it is a charge?
III) That statement has me confused. It’s a change in magnetic field, so current is induced. It’s Faraday’s law. But what is caused exactly? Any hints?
IV) same as II