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KiRa [710]
4 years ago
14

In a circuit, a battery is used to _____.

Physics
2 answers:
stepan [7]4 years ago
8 0

Answer: Option (b) is the correct answer.

Explanation:

When we use a battery in a circuit then it provides voltage to the circuit. As a result there will be change in potential of electrons.

That is, when battery was not attached to the circuit then there was no potential of electrons.  But after the battery is attached then electrons start to move from there place.

Hence, there will be increase in potential of electrons.


USPshnik [31]4 years ago
6 0
The most likely answer that you'd get for this would be the third option which is to raise the potential of electrons.

As we all know, batteries are a source of power. By power, it means that it gives the needed energy for something to work, from toys to electrical appliances. Batteries have also different shapes and sizes, depending on what its purpose is, for what it is to be used, and as to how much power it holds. The energy that it stores is chemical energy and electrochemical cells would convert this energy to an electrical energy when a circuit is complete. Thus, it is used to raise the potential of electrons which would then form to an electric current sufficient enough to power the device it is attached on.
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Suppose a police officer is 1/2 mile south of an intersection, driving north towards the intersection at 30 mph. at the same tim
aleksandr82 [10.1K]

In triangle ABC , using Pythagorean theorem

BC = sqrt(AB² + AC²)

r = sqrt(y² + x²)                                eq-1

taking derivative both side relative to "t"

dr/dt = (1/(2 sqrt(y² + x²) ) ) (2 y (dy/dt) + 2 x (dx/dt))

dr/dt = (1/(2 sqrt(0.5² + 0.5²) ) ) (2 (0.5) (dy/dt) + 2 (0.5) (dx/dt))

dr/dt = (1/(2 sqrt(0.5² + 0.5²) ) ) ( v₁ + v₂)

15= (1/(2 sqrt(0.5² + 0.5²) ) ) ( - 30 + v₂)

v₂ = 51.2 m/s

3 0
3 years ago
Read 2 more answers
A dog has a mass of 13kg
ehidna [41]

A: w=mg    w=13(9.8)    w= 127.4

B: 13kg

C: w=mg    w=13(1.6)    w= 20.8

D: The force of gravity is less on the moon than on earth therefore making the dog weigh less.

5 0
3 years ago
Consider the following thermochemical equation:
Arisa [49]

Answer:

m_w=5.3248\times 10^{23}\ kg

Explanation:

According to the given reaction,

heat released by thecombustion of 2 molecules of Methanol, \Delta H=1277000\ J

we know that molecular mass of Methanol, m=32\ g.mol^{-1}

∴12 gram of methanol = \frac{3}{8}\ moles

we know 1 mole = 6.023\times 10^{23}\ molecules

so,

\rm \frac{3}{8} \ moles=2.258\times 10^{23}\ molecules

Heat from the combustion of 2.258\times 10^{23}\ molecules:

Q=1277000\times \frac{2.258\times 10^{23}}{2}

Q=1442132.0625\times 10^{23}\ J

<u>Now the  mass of water that can be heated from 23.5°C to 88.2°C :</u>

Q=m_w.c_w.\Delta T

1442132.0625\times 10^{23}=m_w.4186\times (88.2-23.5)

m_w=5.3248\times 10^{23}\ kg

8 0
3 years ago
Matter's resistance to a change in motion is called _____ and is directly proportional to the mass of an object. For an object t
ad-work [718]

Answer:

B) Inertia is the resistance of any physical object

5 0
3 years ago
At what speed does a clock move if it is measured to run at a rate two-fifths the rate of a clock at rest with respect to an obs
Liono4ka [1.6K]

Answer:

0.44c

Explanation:

We know that

Time interval at speed (ts)= time interval at rest(tr) / gamma

where

gamma = √[1-(v/c)²]

ts = tr / gamma

tr/ts = gamma

But

Ss/Sr = gamma

Where

Sr = clock speed at rest, Ss at speed):

So

√[1-(v/c)²] = 2/5

1 - (v/c)² = 4/25

(v/c)²= 5/25

v/c = √5 / 5

v = 0.444c

4 0
3 years ago
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