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Mashcka [7]
3 years ago
13

In the context of the loop and junction rules for electrical circuits, a junction is: Group of answer choices where a wire is be

nt. where three or more wires are joined. where only two wires are joined. where a wire is connected to a resistor. where a wire is connected to a battery.
Physics
2 answers:
vitfil [10]3 years ago
6 0

Answer:

In the context of the loop and junction rules for electrical circuits, a junction is where three or more wires are joined.

Explanation:

A point where at least three circuit paths meet i.e wires, is referred to as a junction.

Kirchhoff’s circuit laws are two(2) equations first published by Gustav Kirchhoff in 1845. Fundamentally, they address conservation of energy and charge in the context of electrical circuits. One of the laws known as Kirchoff's Current Law deals with the principle of application of conserved energy in electrical circuits. Kirchoff's Current Law states that the sum of all currents entering a junction must equal the sum of all currents leaving the junction.

This basically means, the algebraic sum of currents in a network of conductors(wires) meeting at a point is equal to zero

Solnce55 [7]3 years ago
4 0

A junction is a point where at least three circuit paths meet.

A branch is a path connecting two junctions .

Kirchhoff's circuit laws

This law states that, for any node (junction) in an electrical circuit ,

the sum of currents flowing into that node is equal to the sum of

currents flowing out of that node.

Kirchhoff's circuit laws are two equalities that deal with the current

and potential difference in the lumped

element model of electrical circuits .

Some terms associated with Kirchhoff's circuit laws

resistor : An electric component that transmits

current in direct proportion to the voltage

across it.

electromotive force: (EMF)—The voltage

generated by a battery or by the magnetic force

according to Faraday’s Law. It is measured in

units of volts (not newtons, N; EMF is not a

force).

capacitor : An electronic component consisting

of two conductor plates separated by empty

space (sometimes a dielectric material is

instead sandwiched between the plates), and

capable of storing a certain amount of charge.

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Setler79 [48]

Answer:

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Explanation:

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6 0
2 years ago
Line segment gj is a diameter of circle l. angle k measures (4x 6)°. circle l is inscribed with triangle g j k. line segment g j
choli [55]

The value of x in the given right triangle in a semicircle is determined as 21.

<h3>What is the measure of a triangle in a semicircle?</h3>

The triangle in a semicircle is always a right angle triangle.

From the figure shown, we can say that the triangle  G J K is right triangle and m<K = 90degrees.

Given that m<K = 4x + 6, we will can use the following equation to find the value of x as shown:

4x + 6 = 90

4x = 90 - 6

4x = 84

x = 21

Thus, the value of x in the given right triangle in a semicircle is determined as 21.

Learn more about right angle here: brainly.com/question/64787

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8 0
2 years ago
A professor's office door is 0.91 m wide, 2.0 m high, and 4.0 cm thick; has a mass of 25 kg; and pivots on frictionless hinges.
olasank [31]

Answer:

F= 5.71 N

Explanation:

width of door= 0.91 m

door closer torque on door= 5.2 Nm

In order to hold the door in open position we need to exert an equal and opposite torque, to the door closer torque, on the door.

so wee need to exert 5.2 Nm torque on the door.

If we want to apply minimum force to exert the required torque we need to apply force perpendicularly on the door knob (end of door) so that to to greater moment arm.

T= r x F

T= r F sin∅

F= T/ (r * sin∅)

F= 5.2/ (0.91 * 1)

F= 5.71 N

5 0
3 years ago
A trumpet creates a sound wave that has a wave speed of 350m/s and a wavelength of 0.8 m . What is the frequency of the sound wa
ValentinkaMS [17]

Answer:

The frequency of sound wave created by trumpet is 437.5Hz

Explanation:

Given

the speed of sound wave = 350 ms^{-1}

the wavelength of sound wave = 0.8 m

the frequency of sound wave = ?

All the waves have same relationship among wavelength, frequency and speed, which is given by the equation:

v = fλ, where

v is speed of the wave

f is frequency of the wave

λ is wavelength of the wave

therefore frequency of sound wave is given by

f = v/λ

 = 350ms^{-1}/0.8m

 = 437.5s^{-1}

 = 437.5Hz (since 1 s^{-1} = 1 Hz (Hertz)

Hence the frequency of sound wave created by trumpet is 437.5Hz

7 0
3 years ago
How can you determine the rate of a chemical reaction?
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