Question

What is the potential difference across ends of a conductor of resistance 200ohm if it carries a current of 4 milli ampere​

Answer 1

Given :

• Resistance = 200 Ohms

• Current = 4 Milli Ampere = 4 * 10^-3 A

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To Find :

• Potential difference across resistors

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Solution :

Use Ohm's Law :

⇒ V = IR

⇒ V = (4 * 10^-3) * 200

⇒ V = 800 * 10^-3

⇒ V = 8 * 10^(-3 + 2)

⇒ V = 8 * 10^-1

⇒ V = 0.8

➜ Potential Difference is 0.8 V

Answer 2

Explanation:

$\bf{\underline{\underline\orange{Given:-}}}$

○ Resistance of a conductor = 200 ohm

○ current following = 4 mili ampere

$\bf{\underline{\underline\blue{To\: Find}}}$

○ potential difference across the conductor

$\bf{\underline{\underline\green{solution}}}$

Here we have :

➡️ Resistance (R) = 200 ohm

➡️current (I) = 4mA = 4 × ( 1 /10³) A = 0.004 Ampheres

Now use Ohm's law

■ I = V/R

where :-

• I indicated current
• V indicated potential differences
• R indicated Resistance

substituting values,,,

➡️ 0.004 = V/200

➡️0.004×200=V

➡️0.8 = V

➡️ v = 0.8 volts

⁂ potential difference across the conductor = 0.8 volts....

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