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Luda [366]
3 years ago
11

HELP ASAP!! Ohms law homework

Computers and Technology
1 answer:
kvv77 [185]3 years ago
8 0

4a)

According to Ohm's law (Current) = (Voltage)/(Resistance)

Given the values: (Current) = 9V / 470 Ohm = 19.1 mA

The current through the LED is 19.1mA, or 0.019A

4b)

(max current) = (voltage)/(min resistance) =>

(min resistance) = (voltage)/(max current) = 6V / 0.05 A = 120 Ohm

The resistor must be at least 120 Ohm, otherwise the LED will fry.

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Answer:

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4 0
2 years ago
How to the inverse function of f(x)=x2 +1 ,x>o
Sindrei [870]
    f(x) = x² + 1, x > 0
       y = x² + 1
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   x - 1 = y²
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5 0
3 years ago
Which of the following are vector graphic file formats? Choose all that apply.
blondinia [14]

There are different kinds of files. The option that is a vector graphic file formats is SVG.

<h3>What are vector files?</h3>

Vector files are known to be a type of images that are created by using mathematical formulas that stands as points on a grid.

The SVG  is known as Scalable Vector Graphics file and it is known to be a  vector image file format as it make use of geometric forms such as points, lines, etc.

Learn more about vector graphic file from

brainly.com/question/26960102

3 0
2 years ago
Suppose we have two String objects and treat the characters in each string from beginning to end in the following way: With one
Simora [160]

Answer:

If all the character pairs match after processing both strings, one string in stack and the other in queue, then this means one string is the reverse of the other.                            

Explanation:

Lets take an example of two strings abc and cba which are reverse of each  other.

string1 = abc

string2 = cba

Now push the characters of string1 in stack. Stack is a LIFO (last in first out) data structure which means the character pushed in the last in stack is popped first.

Push abc each character on a stack in the following order.

c

b

a

Now add each character of string2 in queue. Queue is a FIFO (first in first out) data structure which means the character inserted first is removed first.

Insert cba each character on a stack in the following order.

a   b   c

First c is added to queue then b and then a.

Now lets pop one character from the stack and remove one character from queue and compare each pair of characters of both the strings to each other.

First from stack c is popped as per LIFO and c is removed from queue as per FIFO. Then these two characters are compared. They both match

c=c. Next b is popped from stack and b is removed from queue and these characters match too. At the end a is popped from the stack and a is removed from queue and they both are compared. They too match which shows that string1 and string2 which are reverse of each other are matched.

6 0
3 years ago
¿Cuál es la potencia de una lámpara de incandescencia que se conecta a la red de 220 V, sabiendo que tiene una resistencia de 50
Juliette [100K]

Answer:

  • <u>1,000W</u> (rounded to one significant figure)

Explanation:

I will answer in English.

The question is:

  • <em>What is the power of a filament lamp that connects to the 220 V network, knowing that it has a resistance of 50 ohms?</em>

<em />

<h2>Solution</h2>

<em />

<em>Power</em>, <em>voltage</em>, <em>resistance</em>, and current, are related by either of the following equations:

  • P = V × I
  • P = R × I²
  • P = V² / R

Where:

  • P is power in watts (W)
  • R is resistance in ohms (Ω)
  • V is voltage in volts (V), and
  • I is current in amperes (A)

Since you know the voltage (<em>220V</em>) and the resistance (<em>50Ω</em>), you can use the last equation:

  • P = V² / R
  • P = (220v)² / (50Ω)
  • P = 968 W

Since the magnitude 50Ω has one significant figure, your answer should be rounded to one significant figure. That is <u>1,000W.</u>

7 0
3 years ago
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