Question

please answer it please​

Answer 1

Answer:

In order to understand the relationship between current through a conductor and the potential difference across it , we need to create a simple circuit consisting of the following parts :

• Resistance
• Connecting wires
• Rheostat
• Battery /Cell
• Ammeter
• Voltmeter

Refer to the attached photo to understand better.

Required formula :

$\bigstar \: \: V \propto I$

Introducing a Constant (Resistance ) , we get :

$\implies\: \: V = I \times R$

Where V = Potential Difference , I = Current and R = resistance

Required Law :

Ohm's Law :

Whenever the physical ambience temperature is maintained constant , the current flowing through a conductor is directly proportional to the potential difference applied across its end.

Answer 2

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QUESTION :

please answer it please.

SOLUTION :

See the above attachment..

It shows a complete and labeled circuit diagram.

Now we know that,

Voltage in a circuit is directly Proportional to the current flowing through it .

Suppose that their is a constant resistance.

So,

V = I R

The necessary law is the Ohm ' s law.

According to this law,

V = IR

Where,

V is Voltage.

I is current.

R is Resistance.