The fundamental laws of electric resistance ($V = IR$) were discovered by which physicist? MCQ with Answer and Explanation

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The fundamental laws of electric resistance ($V = IR$) were discovered by which physicist?

A. James Watt

B. Georg Simon Ohm

C. Alessandro Volta

D. André-Marie Ampère

Answer: Option B

Solution (By JKSSB Mock Tests)

Georg Simon Ohm discovered the direct proportionality between voltage and current across a conductor, known as Ohm's Law.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

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The invention of the common synthetic plastic material known as Polyethylene (LDPE) was an accidental discovery by which chemical company?

A. ICI (Imperial Chemical Industries)

B. Dow Chemical

C. BASF

D. DuPont

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Correct Answer: Option A

Explanation:
Eric Fawcett and Reginald Gibson accidentally produced white waxy polyethylene solid residue while testing high-pressure ethylene reactions at ICI in 1933.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

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The invention of the mass spectrometer, used to separate isotopes and determine chemical composition, was developed by whom?

A. Francis William Aston

B. James Chadwick

C. J.J. Thomson

D. Ernest Rutherford

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Correct Answer: Option A

Explanation:
Francis William Aston built the first fully functional mass spectrograph in 1919 and discovered isotopes in non-radioactive elements.

This question belongs to: Static General Knowledge Inventions and Discoveries