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Electricity Fundamentals MCQ - Multiple Choice Question and Answer

Electricity Fundamentals MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 8
The magnitude of the induced emf in a coil is directly proportional to the rate of change of flux linkages. This is known as

Joule's Law
Faraday's second law of electromagnetic induction
Faraday's first law of electromagnetic induction
Coulomb's Law

Question No : 9
Whenever a flux inking a coil or current changesa an emf is induced in it. This is known as

Joule's Law
Coulomb's Law
Faraday's first law of electromagnetic induction
Faraday's second law of electromagnetic induction

Question No : 10
The force of attraction or repulsion between two magnetic poles is directly proportional to their strengths.

Newton's first law
Faraday's first law of electromagnetic induction
Coulomb's first law
Coulomb's second law

Question No : 11
The force of attraction or repulsion between two magnetic poles is inversely proportional to the square of the distance between them. This is known as

Newton's first law
Faraday's first law of electromagnetic induction
Coulomb's first law
Coulomb's second law

Question No : 12
Whenever a conductor cuts magnetic fluxa an emf is induced in it. This is known as

Coulomb's law
Joule's law
Faraday's law
Ohm's law

Question No : 13
A law that states that the polarity of the induced voltage will oppose the change in magnetic flux causing the induction.

Joule's law
Faraday's law
Coulomb's law
Lenz' law

Question No : 14
A law that states that the current in a thermionic diode varies directly with the three- halves power of anode voltage and inversely with the square of the distance between the electrodesa provided operating conditions are such that the current is limited only by the space charge.

Hall's law
Joule's law
Child's law
Coulomb's law