1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Colt1911 [192]
3 years ago
8

The secondary coil of a neon sign transformer provides 7500 V at 0.01 A. The primary coil operates on 120 V. What is the input c

urrent in the primary coil of this transformer assuming that no energy is lost in the transformer?
Physics
1 answer:
nikitadnepr [17]3 years ago
8 0

Answer:

0.625 A

Explanation:

Vs = 7500 V, Is = 0.01 A

Vp = 120 V

Let the primary current be Ip.

As the transformer is ideal, so input power is equal to the output power

Vp x Ip = Vs x Is

120 x Ip = 7500 x 0.01

Ip = 0.625 A

You might be interested in
Yoon Ki investigates electromagnetic induction by moving a bar magnet into a coil of wire. His experimental setup is shown.
Karolina [17]

A change that would most improve his results would be; D) Connecting the galvanometer to the coil

4 0
2 years ago
Read 2 more answers
A microwave oven uses 1,200 watts. It runs a total of 6 hours during the corse of a week. How much energy does the microwave ove
zzz [600]

Answer:

7.2 kilowatts

Explanation:

Energy= power x time

where:

power = 1,200watts to kilowatts is 1.2kw

time = 6hours

therefore,

energy = 1.2kw x 6hrs

=7.2 kilowatts

5 0
3 years ago
PLEASE HELP! Explain how energy travels outward from the core and is emitted from the Sun. Include what happens in each layer of
xxMikexx [17]
Fusion occurs in the Sun's core, releasing energy that is transferred outward. Once in the radiative zone, gamma rays are transferred by radiation. They are converted to other types of photons, which move into the convective zone, where they are transferred by convection. Finally, energy is emitted from the photosphere.
8 0
2 years ago
Read 2 more answers
1. What coefficients would balance the following equation?
maksim [4K]

Answer:

D. 4Al + 3O2 → 2Al2O3

Explanation:

Chemical reactions involves the chemical combination of two or more substances called REACTANTS to yield other substances called PRODUCTS. However, in accordance with the LAW OF CONSERVATION OF MASS, the amount of reactants must be equal to that of the products.

To accomplish this, the reaction must be BALANCED. A balanced equation is an equation in which the number of atoms of each element in the reactant side equals the number of atoms in the product side. In this reaction involving Aluminum and Oxygen to give Aluminum oxide as follows:

Al + 02 → Al2O3

A coefficient is used to balance the number of atoms on both sides of the equation as follows:

4Al + 3O2 → 2Al2O3

3 0
2 years ago
Read 2 more answers
Will you still get tan with sunscreen on
WARRIOR [948]
No, wearing sunscreen won't let you tan. The whole purpose of sunscreen is to protect your skin from sun rays. You can start to become tan if you dont have much sunscreen on - its happened to me.
5 0
3 years ago
Other questions:
  • The prefix kilo- means
    14·2 answers
  • researchers want to use edna to look for an invasive species in a waterway. which of these steps should they do first? a. precip
    13·2 answers
  • A population has a birthrate of 10/1000 , a death rate of 9/1000, an immigration rate of 3/1000, and an emigration rate of 7/100
    5·1 answer
  • What is one of Kepler's laws of planetary motion?
    11·1 answer
  • Mt. Asama, Japan, is an active volcano complex. In 2009, an eruption threw solid volcanic rocks that landed far from the crater.
    10·1 answer
  • camera was able to deliver 1.3 frames per second for this photo, and that the car has a length of approximately 5.3 meters. Usin
    5·1 answer
  • Carbon and oxygen react to form carbon dioxide what are the products?
    15·2 answers
  • Which process would correctly calculate the frequency of a wave?
    5·2 answers
  • Which of the following accurately describes the process of Gas Exchange? *
    8·1 answer
  • Question 45 points)<br> Which is an appropriate way to avoid heat related illness when exercising?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!