June 3 2009

I was so ready to go to sleep.. not only did it slip my mind, but it flew out of it, crashed into a garbage can, met a homeless person, made friends with a mime, took a taxi but, got hit by a train, broke a leg, joined the paraolympics, won silver losing to a Japanese woman, retired, got married to a platypus, discovered a world in a wardrobe, and finally found its way back to my head, but had a fight, argued for days, went out for dinner, asked to come back home, ate a lobster and finally decided to finish this scribe post together.

Answers to Chapter 26 Review

1.EMF=Blv
EMF=(4x10^-3T)(0.05m)(2.5m/s)
EMF= 5x10^-4 V

2.EMF=Blv
EMF=(4x10^-5T)(2m/s)(0.07m)
EMF=1.12x10^-5 V

l=v/R
l=1.12x10^-5 V/0.5
l=2.2x10^-5 A

3.CC is down EC is up

6. South ^ ^ ^ North

8.a)V=P/l
V=1500 Watts/175 A
V= 8.57

9.a)Np/Ns=Np/Vs
1/2500=1200/Vs
Vs=300 000

b)Pp=Ps
Pp=IpVp
Pp=15 A x 120 V
Pp=18 000 W

Ps=IpVp
18 000=(Ip)(300 000)
Ip=0.06 A

c)p=IV
p=(300 000)(0.06)
p=18 000 W
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"A transformer does not create or destroy energy, a transformer only converts voltage and current"
- Ms.Kozoriz

We completed Chapter 37: Electromagnetic Induction Transformers, Ms.Kozoriz has posted the answers on the blog rendering it useless to give you the answers myself.

She presented to us a copper coiled magnetic flashlight (CCMF for short) using the power of inserting a magnet into a copper coil.. that`s as far as i can explain.


If you must study for the Physics Test, a list of problems are provided in the green book to help prepare you for the test:

Ch.25

Reviewing Concepts: 1, 2, 3, 10, 14 p.530
Applying Concepts: 13 p.531
Problems 1-5, 14-16, 20, 21 p.532-533