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
Paraphin [41]
3 years ago
13

To lower the voltage from a "120 V" outlet, what is used (first, at least) in most situations

Physics
1 answer:
nasty-shy [4]3 years ago
4 0

Answer:

B. Transformer

Explanation:

A transformer is a device that is used to either raise or lower voltages and currents in an electrical circuit. In modern electrical distribution systems, transformers are used to boost voltage levels so as to decrease line losses during transmission. It basically trades voltage for current in a circuit, while not affecting the total electrical power. This means it takes high-voltage electricity with a small current and changes it into low-voltage electricity with a large current, or vice versa.

You might be interested in
An electric motor does 900j of work for 8 hours. Calculate the power used​
nataly862011 [7]

Answer:

0.031 W

Explanation:

The power used is equal to the rate of work done:

P=\frac{W}{t}

where

P is the power

W is the work done

t is the time taken to do the work W

In this problem, we have:

W = 900 J is the work done by the motor

t = 8 h is the time taken

We have to convert the time into SI units; keeping in mind that

1 hour = 3600 s

We have

t=8\cdot 3600 =28,800 s

And therefore, the power used is

W=\frac{900}{28800}=0.031 W

6 0
3 years ago
Every gene is made of two <br> a).genotypes <br> b).alleles<br> c).cells
igomit [66]

Answer:

Every gene are made of 2 alleles

5 0
2 years ago
Read 2 more answers
Answer and I will give you brainiliest <br><br><br>Please heeeelp​
Lostsunrise [7]

Answer:

T = 4.905[N]

Explanation:

In order to solve this problem we must perform a sum of forces on the vertical axis.

∑Fy = 0

We have two forces acting only, the weight of the body down and the tension force T up, as the body does not move we can say that it is system is in static equilibrium, therefore the sum of forces is equal to zero.

T-m*g=0\\T=0.5*9.81\\T=4.905[N]

5 0
3 years ago
What do the top of a zip line and the top of a bungee cord have in common
LiRa [457]

Answer:

They are both placed at high vantage points for an optimal experience.

Explanation:

Gravity works in your favor when participating in bungee jumping as well as ziplining

6 0
2 years ago
Read 2 more answers
1. Which of the following is an accurate statement? A. Step-down voltage transformers have a different number of turns in the pr
Snowcat [4.5K]
'C' is the only true statement on the list.

Step-up voltage transformers have a lower number of turns
in the primary than in the secondary winding.

4 0
3 years ago
Other questions:
  • The two populations of stars in our galaxy are actually quite similar in many of their characteristics. True False
    12·1 answer
  • What represents acceleration on a velocity vs. time graph
    10·1 answer
  • The x-coordinates of two objects moving along the x-axis are given as a function of time (t). x1= (4m/s)t x2= -(161m) + (48m/s)t
    15·1 answer
  • A strip of copper metal is placed in an aqueous sodium chloride solution. According to the standard reduction potential below, w
    10·1 answer
  • Once precipitation has fallen on land what paths are available to it
    6·1 answer
  • Honey bees can acquire a small net charge on the order of 1 pC as they fly through the air and interact with plants. Estimate th
    10·1 answer
  • Suppose an object is in orbit around the earth, the earth's gravitational pull some how becomes stronger than the objects forwar
    11·1 answer
  • In a Young's double-slit experiment, a set of parallel slits with a separation of 0.142 mm is illuminated by light having a wave
    8·1 answer
  • Two swimmers relax close together on air mattresses in a pool. One swimmer’s mass is 48 kg, and the other’s mass is 55 kg. If th
    12·2 answers
  • What average net force is required to accelerate a 3950 kg bus to a speed of 25m/s in 10.5 s?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!