Question : In 1785, who used the calibrated torsion balance to measure the force between electric charges?
Option 1: R. A. Millikan
Option 2: Hans Christian Oersted
Option 3: John Michell
Option 4: Charles-Augustin de Coulomb
Correct Answer: Charles-Augustin de Coulomb
Solution : The correct option is Charles Augustin de Coulomb.
In 1785, the French physicist Charles-Augustin de Coulomb used a calibrated torsion balance to experimentally investigate and measure the force between electric charges. Coulomb's work laid the foundation for understanding electrostatic forces and formulating Coulomb's Law, which describes the quantitative relationship between the magnitudes of electric charges and the force between them.
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Question : Who among the following made the first observation on Platinum as a catalyst and discovered similar triads of elements that led to the development of the Periodic Table of elements?
Option 1: Dmitri Mendeleev
Option 3: Johann Wolfgang Dobereiner
Option 4: Michael Faraday
Question : Coulomb/second is a unit of which of the following?
Option 1: Capacitance
Option 2: Resistance
Option 3: Electric current
Option 4: Magnetism
Question : The measure of the force that can cause an object to rotate about an axis is called:
Option 1: moment of inertia
Option 2: power
Option 3: torque
Option 4: centripetal force
Question : Who among the following is an inventor of an electric telegraph?
Option 1: Samuel Finley Breese Morse
Option 2: William Austin Burt
Option 3: Hans Lippershey
Option 4: William Stanley
Question : Why was the 'Tendulkar Committee' constituted?
Option 1: To measure unemployment
Option 2: To measure growth rate
Option 3: To measure poverty
Option 4: To measure agricultural produce
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