Question

explain ohms law . derive the relation of equivalent resistance with combination of resistance in parallel​

Answer 1

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

It is observed that the total current I, is equal to the sum of the separate currents through each branch of the combination. Thus, we may conclude that the reciprocal of the equivalent resistance of a group of resistances joined in parallel is equal to the sum of the reciprocals of the individuals resistances.

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Answer 2

Answer:

$\huge\star\underbrace{\mathtt\red{⫷❥ᴀ᭄} \mathtt\green{n~ }\mathtt\blue{ §} \mathtt\purple{₩}\mathtt\orange{Σ} \mathtt\pink{R⫸}}\star\:$

Explanation:

$\huge{\underline{\underline{Ohm's Law→}}}$

→Ohm's law states that if the physical conditions like heat and temperature remains unchanged then the potential difference across the two ends of a conductor becomes directly proportional to the electric current flowing through it.

→VαI

→V=IR

Here, α=Proportional.

$\bold{\underline{\underline{\dag{Series\:Combination\dag→}}}}$

_﹏﹏_._﹏﹏_._﹏﹏_

R1 ——- R2 ——- R3

Reff. =R1+R2+R3+.......

→V=V1+V2+V3+........

→Vi=Ri/R1+R2+R3+........Rna

→V=IR

→V1=IR1,V2=IR2,V3=IR3=I(R1+R2+R3)

${\boxed{\boxed{→R=R1+R2+R3}}}$

$\bold{\underline{\underline{\dag{ParallelCombination\dag→}}}}$

Reff. =1/R1+1/R2+1/R3+........

→I=I1+I2+I3

→Ii=(Reff./Ri)I

→I=V/Rp

→I1=V/R1,I2=V/R2,I3=V/R3.

→V/Rp=V/R1+V/R1+V/R3=V(1/R1+1/R2+1/R3)

${\boxed{\boxed{→\frac{1}{Rp}=\frac{1}{R1}+\frac{1}{R2}+\frac{1}{R3}}}}$

HOPE IT HELPS.