Question : The potential difference V across the ends of a given metallic wire in an electric circuit is directly proportional to the current flowing through it, provided its temperature remains the same. This is called ___________ law.
Option 1: Pascal's
Option 2: Charles's
Option 3: Ohm's
Option 4: Boyle's
Correct Answer: Ohm's
Solution : The correct answer is Ohm's Law.
Assuming that the temperature of a metallic wire stays constant, the potential difference across its ends in an electric circuit is directly proportional to the current passing through it. We refer to this as Ohm's law. Ohm's law states that the potential difference in a circuit is directly proportional to the current flowing through it. Resistance is the name given to the proportional constant. V = IR (where V is the potential difference, I is current, and R is resistance).
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Question : According to _____ law, the heat produced by an electric current is directly proportional to the resistance of the conductor, the square of the current and the time it flows.
Option 1: Hooke's
Option 3: Faraday's
Option 4: Joule's
Question : Which law was formulated in 1662 and concluded that the product of pressure and volume remains almost constant?
Option 1: Avogadro's law
Option 2: Dalton's law
Option 3: Boyle's law
Option 4: Charles's law
Question : ____________ states that the rates of diffusion of gases are inversely proportional to the square roots of their densities under similar conditions of temperature and pressure.
Option 1: Tyndall's Law
Option 2: Pascal's Law
Option 3: Graham's Law
Option 4: Kepler's Law
Question : _______ states that the total current entering a junction is equal to the total current leaving the junction.
Option 1: Lenz's Law
Option 2: Hooke's Law
Option 3: Ohm's Law
Option 4: Kirchhoff's First Law
Question : Which law was discovered in 1660, which states that for relatively small deformations of an object, the displacement or size of the deformation is directly proportional to the deforming force or load?
Option 1: Charles's law
Option 2: Avogadro's law
Option 3: Hooke's law
Option 4: Bragg's law
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