Question

state ohm law fast plzz​

Answer 1

Current Flow and Ohm's Law

Ohm's law is the most important, basic law of electricity. It defines the relationship between the three fundamental electrical quantities: current, voltage, and resistance. When a voltage is applied to a circuit containing only resistive elements (i.e. no coils), current flows according to Ohm's Law, which is shown below.

I = V / R 

Where: 

I =

Electrical Current (Amperes)

V =

Voltage (Voltage)

R =

Resistance (Ohms)

    

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). Therefore, if the voltage is increased, the current will increase provided the resistance of the circuit does not change. Similarly, increasing the resistance of the circuit will lower the current flow if the voltage is not changed. The formula can be reorganized so that the relationship can easily be seen for all of the three variables.

Answer 2

ohm law states that the potential difference between two point is directly proportional to rate of flowing current when physical condition such as temperature pressure etc is constant

v is directly proportional i

v=ir

where r is content

we know that

r=(density *length)/area

since resistance depend on area and area depand on temprature on increasing certain temprature the area of cross section increase so the value of r varies that's why physical condition is taken content.