Question

:state and prove ohm's
law? class 10
​

Answer 1

Answer:

Ohm's Law states that electric current flowing in a conductor is directly proportional to potential difference across the ends of the conductor,provided temperature and other physical conditions remains constant. Resistance of a conductor is the property of conductor to oppose the flow of charge through it.

Explanation:

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Answer 2

Question :-

state and prove ohm's law?

Solution :-

Ohm's Law :

statement :

★ Ohm’s Law states that the potential difference between two points is directly proportional to the electric current.

Explanation :

★ This means; potential difference V varies as electric current.

• Or, V∝I
• Or, V/I=R             (1)

• Or, 1/I=R/V

• Or, I= V/R            (2)

• Or, V=RI               (3)

⇒Where R is constant for the given conductor at a given temperature and called resistance. Resistance is the property of conductor which resists the flow of electric current through it.

★ SI Unit of resistance is ohm. Ohm is denoted by Greek letter ‘Ω’.

⇒1 ohm (Ω) of Resistance (R) is equal to the flow of 1 A of current through a conductor between two points having potential difference equal to 1 V.

★ This means 1Ω= 1V/1A

⇒From the expression of Ohm’s Law it is obvious that electric current through a resistor is inversely proportional to resistance. This means electric current will decrease with increase in resistance and vice versa.

★ The graph of V (potential difference) versus I (electric current) is always a straight line.

⇒potential differnce electric current graph

( refer the attachment ♡ )