Question : In 1834, who proposed a law that states that the current induced by a change in flow opposes the effect of creating the change?
Option 1: David Brewster
Option 2: Henry Moseley
Option 3: Christian Johann Doppler
Option 4: Heinrich Friedrich Lenz
Correct Answer: Heinrich Friedrich Lenz
Solution : The correct answer is Heinrich Friedrich Lenz.
Heinrich Friedrich Lenz was a Russian physicist of German origin who independently formulated what is known as Lenz's Law in 1834. Lenz's law articulates that when a magnetic field around a conductor changes, the induced electric current's direction opposes the change. In other words, the magnetic field generated by this induced current acts to counteract alterations in the original magnetic field.
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Question : In 1851, who founded the science of hydrodynamics with his law of viscosity describing the velocity of a small sphere through a viscous fluid?
Option 1: Daniel Bernoulli
Option 2: George Gabriel Stokes
Option 3: Evangelista Torricelli
Option 4: Heinrich Gustav Magnus
Question : J. B. Say's Law of Market was not accepted by:
Option 1: Adam Smith
Option 2: Marshall
Option 3: Malthus
Option 4: David Ricardo
Question : The Psychological Law of Consumption states that
Option 1: proportionate increase in consumption is less than a proportionate increase in income.
Option 2: increase in income is equal to an increase in consumption.
Option 3: increase in consumption is greater than the increase in income.
Option 4: consumption does not change with a change in income.
Question : Select the option that can be used as a one-word substitute for the given group of words.
The theory or philosophy of law.
Option 1: Jurisprudence
Option 2: Pacifism
Option 3: Cosmology
Option 4: Philia
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
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