KCET · Physics · Current Electricity

Ohm's Law is appilicable to

A Diode
B Transistor
C Electrolyte
D Conductor

Verified Solution

Answer & Solution

Correct Answer

(D) Conductor

Step-by-step Solution

Detailed explanation

Ohm's law is applicable to conductor. Ohm's law states that \( V=\mathbb{R} \), that is, voltage across a current carrying conductor is
proportional to current. That is, \( V I \propto \) and \( R \) is proportionality constant called resistance.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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