Homework 2

This set covers some basic circuit concepts.

Your Basic Toaster Oven

A toaster oven has a resistance of 24$\Omega$.

Question 1

At a voltage of 120V, what is the current through it?

In [4]:

V= 120
R= 24
V/R

Out[4]:

5.0

Question 2

How many watts of power does it draw?

In [1]:

V= 120
I= 5
V*I

Out[1]:

600

Question 3

Draw your idea of a simple circuit model of the toaster oven and the voltage source. (Take a picture and upload and link.)

In [ ]:



![Circuit](Circuit.jpg)

Question 4

How much current does a toaster oven with a resistance of 12$\Omega$ draw?

In [1]:

V=120
R=12
V/R

Out[1]:

10.0

Question 5

How much power does this toaster oven draw?

In [2]:

V=120
I=10
V*R

Out[2]:

1440

Question 6

Assuming it takes 1 minute to toast two pieces of bread using the toaster oven with a resistance of 12$\Omega$, and electricity costs $0.13/kWh, what is the cost of the electricity used to toast two pieces of bread?

In [3]:

P=1.440
t=0.0333
c=0.13
P*t*c

Out[3]:

0.0062337600000000005