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3 years ago

Which statement describes a resistor in a circuit?

Physics

2 answers:

Usimov [2.4K]3 years ago

5 0

Answer: B. It heats up by opposing the flow of charge through the circuit.

Explanation: A P E X

kozerog [31]3 years ago

4 0

A resistor in a circuit acts as a switch to control the flow of charge in a circuit.

<u>Explanation:</u>

An electrical components that plays a role of limiting or regulating the electrical current flow is termed as Resistor. It can be helpful for the purpose of giving certain voltage to a device like a transistor. The current that is passing through a resistor has a inverse proportionality with its resistance and direct proportionality to the voltage that is passing across it., provided another factors remaining unchanged. This can be explained by Ohm's Law.

The electric current that is passing through an electrical circuit will always be dependent on the the voltage and the resistance. When the current flowing throgh a circuit is larger then it can result in heating that damages and burn he resistors or the objects that is present around the circuit.

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A book is pushed across the table by a student. The student stops pushing on the book and the book slows down and stops. The for

VashaNatasha [74]

A. inertia

Because it has to do with the motion of something, especially if it changes its pace. In this example, the book's motion, when sliding on the table, decreased because of less force being given off from the student.

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3 years ago

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How much energy is stored in a 2.80-cm-diameter, 14.0-cm-long solenoid that has 200 turns of wire and carries a current of 0.800

ozzi

Answer:

The energy stored in the solenoid is 7.078 x 10⁻⁵ J

Explanation:

Given;

diameter of the solenoid, d = 2.80 cm

radius of the solenoid, r = d/2 = 1.4 cm

length of the solenoid, L = 14 cm = 0.14 m

number of turns, N = 200 turns

current in the solenoid, I = 0.8 A

The cross sectional area of the solenoid is given as;

$A = \pi r^2\\\\A = \pi (0.014)^2\\\\A = 6.16*10^{-4} \ m^2$

The inductance of the solenoid is given by;

$L = \frac{\mu_0 N^2A}{l} \\\\L = \frac{(4\pi*10^{-7})(200^2)(6.16*10^{-4})}{0.14}\\\\L = 2.212*10^{-4} \ H$

The energy stored in the solenoid is given by;

E = ¹/₂LI²

E = ¹/₂(2.212 x 10⁻⁴)(0.8)²

E = 7.078 x 10⁻⁵ J

Therefore, the energy stored in the solenoid is 7.078 x 10⁻⁵ J

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3 years ago

The threatened or actual use of physical force to get someone to have sex without consent is called

Nimfa-mama [501]

Wouldn't it be r a p e?

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3 years ago

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What factor determines an object's momentum?

vlada-n [284]

Momentum = mass x velocity

So both mass and velocity affect an object's momentum.

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2 years ago

A ball is dropped from a height of 32 feet. it bounces and rebounds 80% of the height from which it was falling

Step2247 [10]

Answer:

If it falls from 32 feet, how could the distance be 29 feet? Twelve bounces later, 58 is "obviously" incorrect as well. Eliminate those two before you do anything else.

The total distance up until that the nth bounce is

Sn = (32 - 32(.8)12) / (1 - .8) = 149.004883722... = 149

Explanation:

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3 years ago

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