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kondor19780726 [428]
3 years ago
6

State ohms law and derive the relation between current flowing through a circuit and potential difference across the ends of the

conductor.
Physics
1 answer:
dem82 [27]3 years ago
8 0

Answer:

Voltage = current * resistance

Explanation:

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

V = IR

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

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is described as the sum of all the individual resistances in a series.1) Equivalent resistance2) Parallel circuit3) Series circu
irga5000 [103]

The sum of all resistances in the series circuit is known as Equivalent resistance.

R=r_1+r_2+.\ldots.r_n

where R is the equivalent resistance.

Hence, option 1 is the correct answer.

6 0
1 year ago
Which energy resources are found above the Earth's surface?
OverLord2011 [107]

Answer:

Hey

Your answer would be B) B) solar, wind, biomass

Hydroelectric, uranium Geothermal=bellow earth's surface.

Coal, Oil, Natural gas=bellow earth's surface.

4 0
3 years ago
In atoms, electrons surround the nucleus in
nasty-shy [4]

In atoms, electrons surround the nucleus in specific energy levels.

Answer: Option B

<u>Explanation: </u>

Atom, actually considered as the tiny part that is ever present in this universe. Many theories and experiments were conducted, for studying what was present inside of an atom, and many theories came into light.

And finally, Bohr-Sommerfeld Theory stated the final conclusion, that the positive charge is at the centre of the nucleus, and all the electrons revolve in their specific energy levels.  If an atom wants to move to lower energy state, it should emit energy, whereas for going to higher state, it should gain energy.

8 0
3 years ago
How much heat (in kJ) is needed to convert 866 g of ice at −10°C to steam at 126°C? (The specific heats of ice and steam are 2.0
elena-14-01-66 [18.8K]

Answer:

2671.3 kJ

Explanation:

m = 866 g at - 10 degree C converts into steam at 126 degree C.

The following steps are there

(1) ice at - 10 degree C converts into ice at 0 degree C

H1 = m x specific heat of ice x ΔT

H1 = 866 x 2.03 x 10 = 17579.8 J

(ii) ice at 0 degree C converts into water at 0 degree C

H2 = m x Latent heat of fusion = 866 x 334 = 289244 J

(iii) water at 0 degree C converts into water at 100 degree C

H3 =  m x specific heat of water x ΔT

ΔH3 = 866 x 4.186 x 100 = 362507.6 J

(iv) water at 100 degree C converts into steam at 100 degree C

H4 = m x Lateant heat of vaporisation

H4 = 866 x 2260 = 1957160 J

(v) seam at 100 degree C converts into steam at 126 degree C

H5 = m x specific heat of steam x ΔT

H5 = 866 x 1.99 x 26 = 44806.84 J

The total heat required is

H = H1 + H2 + H3 + H4 + H5

H = 2671298.24 J = 2671.3 kJ

8 0
3 years ago
What is the MAIN reason water from the oceans turns to water vapor, and then evaporates into the air?
GuDViN [60]

This has a two word answer: sun's heat. The faster moving molecules near the ocean's surface are provided with enough energy from the sun to escape the surface they are near.

 

8 0
3 years ago
Read 2 more answers
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