Question

State Ohm's law. Express it mathematically. Define
S.I. unit of resistance.​

Answer 1

Answer:

Ohm's law states that the electric current flowing in a circuit is proportional to the voltage and inversely proportional to the resistance.Therefore if the voltage increased,the current will increase  provided the resistance of the circuit does not change.

The ohm is the si unit of resistance named after german physicist georg simon ohm

Explanation:

Answer 2

Answer:

Ohm's law states that the electrical current (I) flowing in an circuit is proportional to the voltage (V) and inversely proportional to the resistance (R).

The electrical resistance per unit length, area, or volume.

Resistance is the opposition that a substance offers to the flow of electric current.

IF I IS THE CURRENT AND V IS THE POTENTIAL DIFFERENCE BETWEEN THE TWO ENDS OF THE CONDUCTOR, THEN

V is directly proportional to I

then,

$\frac{v}{i} = r$

where, r(resistance) is constant.

so, V=IR

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