Scribe!!

Hey everyone it's me Aldrin B. scribing for yesterday's class...

At the start of the class Ms. K gave back our test papers..
woooo... scary!!XD.. She also gave us the answers....

refer to slide 5/25/09 posted by Ms K.

after that, we were asked to answer the problems on the handout she gave last friday.

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Simple Circuits (#'s 1 & 2 a-f)

1. Three 10Ω resistors are connected in series to a 12-V battery.

a. Draw a diagram of the circuit.
(-----series circuit diagram----)to be posted

b. What is the total resistance of the circuit.
RT = 10Ω + 10Ω + 10Ω
= 30Ω

c.What is the total current in the circuit?
I = V/R
= 12V/30Ω
=0.4A

d. what is the potential drop across each resistor?
V= IR
=(0.4A)(10Ω)
=4V

e. What is the current in each resistor?
I=V/R
=12V/30Ω
=0.4A

f. What is the power dissipated by each resistor?
P=IV
=0.4A(4V)
=1.6W

2. Three 10Ω resistors are connected in parallel to a 12-V battery.

a. Draw a diagram of the circuit.
(-----parallel circuit diagram----)to be posted

b. What is the total resistance of the circuit?
1/R = 1/10 + 1/10 + 1/10
= 3/10
R/1 = 10/3 = 3.3Ω

c. What is the total current in the circuit?
I=V/R
=12V/3.3Ω
=3.6A

d. What is the potential drop across each resistor?
(-----------------------------------------)

e. What is the current in each resistor?
I=V/R
= 12V/10Ω
=1.2A

f. What is the power dissipated by each resistor?
P=IV
=1.2A(12V)
=14.4W

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We then answered problems regarding compound circuits.??

well, thats all I remember. i'll put more information as soon as I get home.

*** i think we have an assignment about the problems on the big book***:)?

see you all in class!!!