Question

what is ohm' law explain it

Answer 1

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Ohm's law=> The law that states that the voltage across a resistor is directly proportional to the current flowing through the resistance.

➡ Ohm's law is named for German physicist Georg Ohm (1789-1854). 

➡ Ohm's law is used to show the relationship of current, voltage, & resistance.

➡ The current in any circuit is directly proportional to the applied voltage and inversely proportional to the resistance. 

➡ Formula:- V = IR

Answer 2

$\huge\bold\red{hayy \: mate \: !!!}$.

In direct-current (DC) circuits, Ohm's Law is simple and linear. Suppose a resistance having a value of R ohms carries a current of I amperes. Then the voltage across the resistor is equal to the product IR. There are two corollaries. If a DC power source providing E volts is placed across a resistance of R ohms, then the current through the resistance is equal to E/Ramperes. Also, in a DC circuit, if E volts appear across a component that carries Iamperes, then the resistance of that component is equal to E/I ohms.

Mathematically, Ohm's Law for DC circuits can be stated as three equations:

E = IR

I = E/R

R = E/I

When making calculations, compatible units must be used. If the units are other than ohms (for resistance), amperes (for current), and volts for voltage), then unit conversions should be made before calculations are done. For example, kilohms should be converted to ohms, and microamperes should be converted to amperes.


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