All categories

2 years ago

In parallel circuits total resistance will be less than the resistance of the least resistence device. HOW ? please helppp

Physics

1 answer:

Lorico [155]2 years ago

3 0

Explanation:

Resistors can be connected in two ways;

1. Series connection

2. Parallel connection

When resistors are connected in series, the effective resistance is simply by adding up Rtotal = R1 + R2 + R3...

But when the are connected in parallel the effective resistance is simply 1/Rt = 1/R1 + 1/R2 + 1/R3

You can choose any value for your R1, R2 and R3 try it and see for yourself.

Good luck

You might be interested in

What are igneous intrusions and extrusions

spayn [35]

Igneous intrusions form when magma cools and solidifies before it can reach the surface. An extrusion consists of extrusive rock; which forms above the surface of the crust.

3 0

3 years ago

Two technicians are discussing how a clutch disengages. Technician A says a gap on each side of the clutch disk facing when dise

victus00 [196]

Answer: A - a gap on each side of the clutch disk facing when disengaged

Explanation:

A clutch switch is used to ensure the clutch is disengaged

or Prevent the engine from starting unless the clutch pedal is depressed

When a clutch is disengageda gap will be on each side of the facing.

5 0

2 years ago

Read 2 more answers

Find the rms current delivered by the power supply when the frequency is very large. Answer in units of A.

Verizon [17]

Answer:

The rms current is 0.3112 A.

Explanation:

Given that,

Suppose, The capacitance is 170 μF and the inductance is 2.94 mH. The resistance in the top branch is 278 Ohms, and in the bottom branch is 151 Ohms. The potential of the power supply is 47 V .

We know that,

When the frequency is very large then the capacitance can be treated as a short circuit and inductance as open circuit.

So,

We need to calculate the rms current

Using formula of current

$I=\dfrac{V}{R}$

Where, V = voltage

R = resistance

Put the value into the formula

$I=\dfrac{47}{151}$

$I= 0.3112 \ A$

Hence, The rms current is 0.3112 A.

8 0

2 years ago

In the long run, why might it be less expensive to construct 100 geothermal power plants than to form the same area for corn to

Ne4ueva [31]

Answer:

Geothermal power plants require high-temperature (300°F to 700°F) hydrothermal resources that come from either dry steam wells or from hot water wells. People use these resources by drilling wells into the earth and then piping steam or hot water to the surface. The hot water or steam powers a turbine that generates electricity. Some geothermal wells are as much as 2 miles deep.

Explanation:

8 0

2 years ago

What is stellar parallax?a.It describes the fact that stars are actually moving relative to one another, even though to our eyes

bagirrra123 [75]

Answer:

Option C

C. It is the slight back-and-forth shifting of star positions that occurs as we view the stars from different positions in Earth's orbit of the Sun.

Explanation:

The angle due to the change in position of a nearby object against the background stars it is known as parallax.

The parallax angle can be used to find out the distance by means of triangulation. Making a triangle between the nearby star, the Sun and the Earth(as is shown in the image below), knowing that the distance between the Earth and the Sun (150000000 Km) is defined as 1 astronomical unit.

$d(pc) = \frac{1}{p('')}$ (1)

Equation (1) represents the distance in a unit known as parsec (pc).

Key terms:

Parsec: Parallax of arc second

3 0

3 years ago