All categories

3 years ago

Which is an advantage of AC over DC power?

Physics

2 answers:

CaHeK987 [17]3 years ago

6 0

Answer:

The correct choice is

A. AC voltage can be transformed into other voltages through transformers.

Explanation:

We can convert an AC Voltage to other higher or lower voltage making use of a step up or step down transformer. Electricity is transferred over long distances at high voltages as the losses are minimum at high voltage. The electricity can not be used in households at such high voltage. So the high voltage is converted to low voltage using transformers. This can only be done in case of AC Power.

Zanzabum3 years ago

4 0

Its A......................................................................................

You might be interested in

Marisa's car accelerates at an average rate of 2.6m/s2. How long will it take her car to accelerate from 24.6m/s to 26.8m/s?

miv72 [106K]

It would take her 2.2 m which is in about 1.7 seconds

7 0

3 years ago

Which of the folltrue or false: the ratio of heat exchange in conduction is independent of exposure time.owing techniques uses e

Sliva [168]

True conditions

Efficiency of Heat Exchanger are as below:

the heat exchange process between two fluids with different temperatures using solid walls occurs in various engineering applications. The tool to achieve this exchange is a heat exchanger. Some applications like air conditioning, power generation, waste heat recovery, and chemical processing use this device.

The basis of the work of a heat exchanger is that the hot fluid enters the heat exchanger at temperature T1 and its heat capacity is Chot. Also, the cold fluid with the heat capacity of Ccold enters temperature t1; in the meantime, the hot fluid loses its heat, and its temperature drops to T2. It delivers heat to the cold fluid to increase its temperature to t2 and leave the heat exchanger at this temperature.

To learn more about Heat Exchanger

brainly.com/question/22595817

#SPJ4

6 0

2 years ago

Which axis is the IV on a graph?

Oksanka [162]

Is their a picture or something?

8 0

3 years ago

Deena made a chart to summarize features of a velocity vs. time graph for objects with constant acceleration and objects with co

Irina-Kira [14]

The error is:
"Find acceleration by finding the area of the rectangle above the line"

The acceleration of any body is the rate of change of velocity of that body. If the motion of the object being considered is plotted on a graph, with the velocity on the y-axis and the time on the x-axis, this ratio will be equivalent to the slope of the graph, not the area above the line.

5 0

3 years ago

Read 2 more answers

which measurment describes the amount of heat needed to raise the temperature of one gram of a material by one degree celsius?

ella [17]

Answer:

Specific Heat

Explanation:

Specific heat is the measurement which describes the amount of heat needed to raise the temperature of one gram of a material by one degree Celsius.

It is the amount of heat required per unit mass to raise the temperature by one degree Celsius. The relationship between heat and the temperature change is usually expressed as shown below:

$Q=cm$ Δ $T$

where $Q$ = heat added,

$c$ = specific heat,

$m$ =mass; and

Δ $T$ = change in temperature

7 0

4 years ago