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3 years ago

1. Describe an application where a series circuit might work better than a parallel circuit

2 answers:

8 0

If you have a light bulb and you want to be able to switch it on and
off, then you must connect the switch and the light bulb in series
across the battery.

If you connect the switch and light bulb in parallel across the battery,
then the light bulb will shine all the time, and PLUS ... when you flip the
switch to ' ON ', sparks will shoot out of the switch, the wires will get hot
and smoking, and the battery will instantly empty itself.

So this is an application where the series circuit might work better than
the parallel one.

Len [333]3 years ago

7 0

Another example could be Christmas tree lights. You have sometimes hundreds of lights wired in series. If they were in parallel the wire would then have to go to each light meaning potentially hundreds of different wires

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Check the explanation

Explanation:

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3 years ago

Write a method doubleUp that doubles the size of a list of integers by doubling-up each element in the list. Assume there's enou

Savatey [412]

Answer:

The solution in Python is as follows:

class myClass:

def doubleUp(self,doubleList):

doubleList[:0] = doubleList[::2] = doubleList[1::2] = doubleList[:]

newlist = []

n = int(input("Number of elements: "))

for i in range(n):

num = int(input(": "))

newlist.append(num)

list = myClass()

list.doubleUp(newlist)

print(newlist)

Explanation:

Start by creating a class

The solution in Python is as follows:

class myClass:

Then define the method doubleUp

def doubleUp(self,doubleList):

The duplicates is done here

doubleList[:0] = doubleList[::2] = doubleList[1::2] = doubleList[:]

The program main begins here

This defines an empty list

newlist = []

This prompts user for number of elements

n = int(input("Number of elements: "))

The following iteration get the elements of the list

for i in range(n):

num = int(input(": "))

newlist.append(num)

This defines the instance of the class

list = myClass()

This calls the method

list.doubleUp(newlist)

Lastly, this prints the duplicate list

print(newlist)

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3 years ago