Question

Calculate the Resistance of a conductor if
if the current flowing through it is 0.2A
when the applied PD is 0-8v.​

Answer 1

Answer:

$\bigstar{\bold{Resistance\:=\:4\:\Omega}}$

Explanation:

$\Large{\underline{\underline{\it{Given:}}}}$

• Current flowing through conductor (I) = 0.2 A
• Potential difference (V) = 0.8 V

$\Large{\underline{\underline{\it{To\:Find:}}}}$

• Resistance of the conductor

$\Large{\underline{\underline{\it{Solution:}}}}$

➣ By Ohm's law resistance of a conductor is given by the formula

    R = V/I

➣ Substituting the datas, we get

    R = 0.8/0.2

    R = 4 Ω

$\boxed{\bold{Resistance\:=\:4\:\Omega}}$

$\Large{\underline{\underline{\it{Notes:}}}}$

➙ Ohm's law state that the current flowing through a conductor is directly proportional to potential difference applied across its ends provided the temperature and other physical conditions remain unchanged.

➙ A semi conductor does not follow Ohm's law.

➙ Resistance is defined as the property of a conductor to oppose the flow of charges through it.

Answer 2

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${\red\bigstar\large\bold{\mathrm{\underline{\green{Given:}}}}}$

❥ Current = 0.2 A

❥ Potential Difference = 0.8 V

${\red\bigstar\large\bold{\mathrm{\underline{\green{To\:Find:}}}}}$

❥ Resistance

${\red\bigstar\large\bold{\mathrm{\underline{\green{Solution:}}}}}$

✤ Ohm's Law -

It states that the current through a conductor between two points is directly proportional to the voltage across the two points.

✤ According to Ohm's Law -

$\large\bold{\boxed{\sf{\pink{R\:=\: \dfrac{V}{I}}}}}$ $\red\bigstar$

$\star\sf R\:=\: \dfrac{0.8}{0.2}$

$\large\bold{\mathscr{\underline{\underline{\orange{Resistance\:=\:4 \Omega }}}}}$

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