Magnets Pt. 2 Flashcards
A changing magnetic field creates an…
electric field
A changing electric field creates a…
magnetic field
What are 3 ways to induce electricity?
-Move the wire
-Move the magnet
-Use an electromagnet to create a changing magnetic field
If the wire has more coils, the v______ is p____________.
voltage, proportional
If a coil of wire experiences change in the magnetic field, it induces what?
Electricity
It will become harder to move the magnet when the voltage is what?
Higher/More of it
What is Faraday’s Law?
Voltage is proportionate to the coils in the wire. More Coils = Higher Voltage
What is a transformer
The current runs through one coiled wire, making it a magnet, which then induces a current in another nearby coiled wire.
The c_____ depends on the r_________. (Amp = V/R)
current, resistance
Example of a transformer?
Electricity running from a power bank to a household.
What do transformers transform?
They transform voltage.