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3 years ago

Which is true?

Physics

1 answer:

Anit [1.1K]3 years ago

8 0

Answer:

Explanation:

Statement 1 :

When the two different resistors are connected in parallel, then the current in both the resistors is different.

Yes, it is true, the voltage is same across both the resistors and then the current is different.

Statement 2 :

When the two different resistors connected in parallel, the voltage across each of them is different.

It is false, the voltage is same in both the resistors.

Statement 3 :

When three resistors are connected in parallel, the equivalent resistance is given by triple the resistance,

It is false, the equivalent resistance becomes one third of the individual resistance.

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A student conducts an investigation on electricity and magnetism. Which relationship will the student discover between the curre

jekas [21]

Answer:

As current increases, the magnetic field strength increases.

So you're correct! :)

8 0

3 years ago

To sterilize a 48.0-g glass baby bottle, we must raise its temperature from 16.0°C to 94.0°C. How much heat transfer is required

FinnZ [79.3K]

Answer:

3144.96 J

Explanation:

Heat transfer is,

$q=mc\Delta t$

As we know that the specific heat of the glass is,

$c=0.840J/g^{\circ}C$

Given that the mass of bottle is 48 g.

And the initial temperature is 16°C and the final temperature is 94°C.

Therefore,

$q=48\times 0.840(94^{\circ}-16^{\circ})\\q=48\times 0.840\times 78^{\circ}\\q=3144.96 J$

7 0

4 years ago

15. A locomotive moved 18.0 m [W] in a time of 6.00 s and stopped. After stopping, the

mariarad [96]

Answer:

Distance = 30m

Displacement = 6m W

Explanation:

Given the following:

Movement 1 = 18m W

Movement 2 = 12m E

Diatance is a scalar quantity with only magnitude and no direction. That is, in Calculating the distance moved by the locomotive, the direction of travel or movement of the object is not considered. It only measures the total amount of movement made during the Time of motion.

Therefore, total distance traveled equals :

Movement 1 + movement 2

18m + 12m = 30m

B) Displacement also measures the movement made by an object. However, Displacement is a vector quantity and therefore, considers both magnitude and direction of travel of the object. Therefore, it measures the overall change in position of the object from its starting position.

Therefore, Displacement of the locomotive equals:

18m W - 12m E = 6m E

3 0

3 years ago

What type of energy does gasoline have? How could you relate it to the movement of a vehicle that uses it?

Licemer1 [7]

Answer:

Chemical potential energy is the energy stored in the chemical bonds of a substance. The various chemicals that make up gasoline contain a large amount of chemical potential energy that is released when the gasoline is burned in a controlled way in the engine of the car.

Explanation:

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3 years ago

A charged particle enters into a uniform magnetic field such that its velocity vector is perpendicular to the magnetic field vec

Ugo [173]

Answer:

a circular path

Explanation:

In a magnetism field if a charged particle having a charge of magnitude '' enters such that its velocity vector V is 90° to the direction of the magnetic field "B'', then it will experience a force, called Lorentz force F

$F = V\times B$

According to the property of cross-product, the Lorentz force (F) acting on the particle will be perpendicular to the instantaneous position of the particle, making the path of the particle to be a circular path.

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3 years ago