Question

Phase relationship between the applied voltage and the current flowing through the inductive circuit is

Answer 1

Answer: The relation between current and voltage is

V = IR

Where V is the voltage

I is the electric current

R is the electrical resistance

Explanation :

Let us assume that the inductive wire has 2 ends A and B .

Now let us study about a concept in current electricity - Potential or Potential at a point

The potential at a point is the amount of work done in bringing a unit positive charge from infinity to that point .

Now different points have different potentials. Keeping this in mind , we can say that the ends A and B of the inductive wire have 2 different potentials .

Now the difference between the potentials of the points A and B is called the Potential Difference between the points A and B

Potential Difference is also called voltage.

Now a relation can be established between the voltage( potential difference) applied across the ends A and B of the inductive wire and the current flowing through it only by applying Ohm's Law of electrical resistance.

Now what is electrical resistance ?

Electrical Resistance is the obstruction offered to the electrical current flowing through the conductor( in this case inductive wire ) by the fixed atoms of the conductor .

Ohm's law of electrical resistance states that

Temperature and other physical conditions remaining constant , the electric current flowing through the conductor ( inductive wire ) is directly proportional to the potential difference or voltage applied across the ends the conductor( or wire ) .

Hence the Law states that -

Electric current I is directly proportional to voltage V

Or Electric current I = voltage V / electrical resistance R , where electrical resistance R is the constant of proportionality

Or I = V/R

Or V = IR , hence proved

Hope it helps :)