ciaraCochran5629 ciaraCochran5629
  • 03-08-2022
  • Physics
contestada

If the current in an inductor is doubled, by what factor is the stored energy multiplied?
a. 4
b. 1/4
c. 2
d. 1/2
e. 1

Respuesta :

Reideen
Reideen Reideen
  • 03-08-2022

Answer:

  • a. 4

Explanation:

_______________

[tex]I_2=2I_1[/tex]

[tex]L=\text{const}[/tex]

_______________

[tex]\displaystyle \frac{W_2}{W_1}\; - \;?[/tex]

_______________

[tex]\displaystyle \boldsymbol{\frac{W_2}{W_1}}=\frac{\dfrac{LI_2^2}{2} }{\dfrac{LI_1^2}{2} } =\frac{I_2^2}{I_1^2} =\bigg(\frac{I_2}{I_1} \bigg)^2=\bigg(\frac{2I_1}{I_1} \bigg)^2=2^2=\boldsymbol{4}[/tex]

Answer Link

Otras preguntas

Please Help Am Confused!
1) The sum of the digits in a 2 digit number is 7. Reversing the digits increases the number by 9. What is the number?
Why is Heracles (Hercules) the favorite son of Zeus?
Lisosomas: Mitocondrias: ​
What number (X) comes next in the series (17, 9, 18, 7, 19, 5, 20, X) 3 4 16 21 23
What are the examples of 8 branches of chemistry?
How to change account to have access to tutor
Stephen Schwarzman, one of the members of the global superclass, stated that __________ people make the world's major decisions
(This is a multiple choice question)Suppose you are rehearsing for a dance competition and you fall and hurt your shoulder. At the hospital, they take X-rays, c
7. Assessment Practice Tiffany buys a stuffed animal for 84¢. She pays with 8 dimes and I nickel. Which shows hov much change Tiffany should get? A A C) BO D​