All categories

3 years ago

If a 120 V appliance requires 15 A to operate, what is the resistance of the appliance?

Computers and Technology

1 answer:

Strike441 [17]3 years ago

8 0

The resistance is 16 ohm's

V=I x R where V is the voltage, I is the current, and R is the resistance in Ohms

120= 15 x R

R=120/15

R= 8 Ohm's

P=VxV / R

P=120v x 120v / 8 ohms

P= 14400/8

P = 1800 watts

R = V x V/P

R = 14400/900

R = 16 Ohm's

The resistance is 16 ohm's:

I = V/R

I = 120/16

I = 7.5 Amps

You might be interested in

How do I persuade my parents to allow me to have social media? I will be 15 in a week or so, so I am old enough. I'm pulling my

Flauer [41]

Answer:

my explanation is above my comment :)

Explanation:

6 0

3 years ago

Two electronics technicians are looking at the piece of testing equipment shown in the figure above. Technician A says that this

Ilya [14]

B is your correct answer.

8 0

3 years ago

Read 2 more answers

Write a program that prompts the user for a word or phrase, and determines if the entry is a palindrome. A palindrome is a word

vekshin1

Answer:

Explanation:

The following code is written in Python. It asks the user for an input. Then cleans the input using regex to remove all commas, whitespace, and apostrophes as well as making it all lowercase. Then it reverses the phrase and saves it to a variable called reverse. Finally, it compares the two versions of the phrase, if they are equal it prints out that it is a palindrome, otherwise it prints that it is not a palindrome. The test case output can be seen in the attached picture below.

import re

phrase = input("Enter word or phrase: ")

phrase = re.sub("[,'\s]", '', phrase).lower()

reverse = phrase[::-1]

if phrase == reverse:

print("This word/phrase is a palindrome")

else:

print("This word/phrase is NOT a palindrome")

7 0

2 years ago

20 points

adoni [48]

Yes it's important. It's like taking jotting down the ideas you have for a project, you don't want to forget anything, and these things help you keep track of what you want to do.

Answer would be false.

4 0

2 years ago

Two files named numbers1.txt and numbers2.txt both have an unknown number of lines, each line consisting of a single positive in

Reika [66]

Answer:

see explaination for program code

Explanation:

scalar_product = 0

li=[]

li2=[]

#reading numbers1.txt and numbers2.txt intoli and li2 respectively

with open('numbers1.txt') as n1, open('numbers2.txt') as n2:

for line1 in n1:

li.append(int(line1))

for line2 in n2:

li2.append(int(line2))

#storing min list size into variable l

a=len(li)

b=len(li2)

if a<b:

l=a

else:

l=b

#calculating scalar product

for i in range(l):

scalar_product=scalar_product+li[i]*li2[i]

print("scalar product is",scalar_product)

6 0

3 years ago