Test 3, Ch. 29-35

Question 1

Electromagnetic Induction

Answer 1

if you put a changing magnetic field inside a loop of wire your can make a current in that wire

Question 2

How can we change induction?

Answer 2

by changing the size or orientation of the loop

or by changing the magnetic field of a stationary loop

Question 3

Process to induce a magnetic field

Answer 3

induce a voltage to induce a current in the loop to induce a magnetic field

Question 4

Lenz’s Law

Answer 4

oppose change

For example: oppose a changing magnetic field by creating an equal in magnitude and opposite in direction magnetic field

Question 5

Electro magnetic spectrum

Answer 5

radio-micro-IR-vis-UV- x-ray -gamma ray

Question 6

What type of voltage does a volt meter read?

Answer 6

V(RMS)

Question 7

Resonance

Answer 7

Make the impedance as small as possible

Question 8

Step up transformer

Answer 8

V2>V1

V2

Question 9

What determines color?

Answer 9

frequency

Question 10

Dispersion

Answer 10

each wavelength has its own index of refraction(n)

Question 11

Polarization

Answer 11

Polarized filters only allow 1 orientation of the electromagnetic field through