Description : Coulomb's law for the force between electric charges most closely resembles a.Newton's laws of motion b.Law of conservation of energy c.Gauss's theorem d.Newton's law of gravitation e.None of the above
Last Answer : d. Newton's law of gravitation
Description : The four underlying equations in electromagnetic theory are called: w) Einstein's Equations x) Maxwell's Equations y) Newton's Equations z) Faraday's Law
Last Answer : ANSWER: X -- MAXWELL'S EQUATIONS
Description : State Faraday's second law of electromagnetic induction.
Last Answer : The Magnitude of the induced e.m.f is directly proportional to the rate of change of magnetic field linking the conductor.
Description : State Faraday's first and second law of electromagnetic induction.
Last Answer : i)Faraday's First Law: Whenever a conductor cuts the magnetic lines of force or is cut by the magnetic lines of force or flux linking with conductor changes, an emf is induced in the conductor. ... Law: The magnitude of induced emf is directly proportional to the rate of change of flux.
Description : State Faraday’s law of electromagnetic induction.
Last Answer : Faradays first law: The first law states that whenever the magnetic lines of force (flux lines) linking with a coil or conductor changes, an emf gets induced in the coil or conductor. Such an emf lasts ... to the rate of change of flux linkage where flux linkage = Flux X Number of turns of coil.
Description : The statement the resultant of the external forces applied to a body (rigid or non-rigid) composed of a system of particles is equivalent to the vector summation of the effective forces acting on all ... motion b.Principle of dynamics c.D' Alembert's principle d.Nowton's law e.Mohr's principle
Last Answer : c. D' Alembert's principle
Description : State the faraday’s laws of electro magnetic induction.
Last Answer : In 1831 Faraday discovered the production of electric current in electric conductor by converting magnetism. Faraday has mentioned two laws known as faraday's laws of electro magnetic induction. First ... conductor is directly proportional to the rate of change of flux linked with that conductor.
Description : Which one of the following laws best describes the operation of an electric generator? w) Ampere's Law x) Gauss' Law y) Ohm's Law for Conductors z) Faraday's Law of Induction
Last Answer : ANSWER: Z -- FARADAY'S LAW OF INDUCTION
Description : The statement that the sum of the kinetic and potential energies of a particle in the earth's gravitational field is constant is known as a.Principle of conservation of mechanical energy b.Law of gravitation c.Newton's law d.Principle of conservation of momentum e.Law of nature
Last Answer : a. Principle of conservation of mechanical energy
Description : According to Faraday’s law, EMF stands for a) Electromagnetic field b) Electromagnetic force c) Electromagnetic friction d) Electromotive force
Last Answer : d) Electromotive force
Description : The force acting between two point charges can be computed using which of the following laws? w) Ohm's Law x) Ampere's Law y) Coulomb's Law z) Newton's Second Law.
Last Answer : ANSWER: Y -- COULOMB'S LAW
Description : The basic operating principle of a transformer is attributed to ______________. A. electromagnetic induction B. variance of a conductor in a magnetic field C. mutual reaction D. thermionic emission
Last Answer : Answer: A
Description : In Newton's law range, the drag co-efficient for the motion of spherical particle in a stationary fluid is (A) 0.44 (B) 0.044 (C) 4.4 (D) 44
Last Answer : (A) 0.44
Description : The flying of birds is a proof of Newton’s (a) First law (b) Second law (c) Third law of motion (d) Both Second and Third laws
Last Answer : Ans:(c)
Description : How many Newton's laws of motion and what are they ?
Last Answer : Newton's law of motion is threefold. 1. Unless applied by force exerted on an object from the outside , the stationary object will remain stationary forever and the moving object will always move in a ... in the direction in which the force acts. 3. Every action has an equal and opposite reaction
Description : Are there any situations in which we cannot apply Newton’s laws of motion? Is there any alternative for it?
Last Answer : Are there any situations in which we cannot apply Newton’s laws of motion? Is there any alternative for it?
Description : Which of Newton's laws of motion is demonstrated when a car applies its brakes on an icy surface but the car continues to slide along the surface?
Last Answer : Newton's First Law: objects at rest tend to stay at rest,objects in motion tend to stay in motion. When the brakes areapplied, the friction with the road surface is the force that stopsthe car -- on ice, this friction is greatly reduced.
Description : When Newtons laws of motion apply in outer space true or false?
Last Answer : Need answer
Description : The passengers standing in a bus fall in the backward direction when the stationary bus begins to move. Which of the following laws explains this situation? (1) Newton's First Law of Motion (2) Newton's Third Law of Motion (3) Newton's Second Law of Motion (4) The Law of Conservation of Momentum
Last Answer : (1) Newton's First Law of Motion Explanation: According to Newton's first law of motion (law of inertia) a body either at rest or in uniform motion will remain so unless acted on by a force When the passengers are standing on the bus, they (and the bus) are in a state of uniform motion.
Description : Define any three laws related to electromagnetic induction. Write use of each law.
Last Answer : Ans: Faraday's laws of electromagnetic induction: First law: Whenever a conductor cuts the magnetic flux, an emf is induced in it. OR Whenever a changing magnetic flux links with the ... used for finding the direction of force acting on current carrying conductor when placed in magnetic field.
Description : Which law/principle of solid mechanics is similar/equivalent to Newton's law of viscosity in fluid mechanics? (A) Archimedes principle (B) Newton's second law of motion (C) Hooke's law (D) Newton's third law of motion
Last Answer : (C) Hooke's law
Description : Propulsion of rocket follows from the (A) Newton's second law of motion (B) Newton's third law of motion (C) Law of projectiles (D) Archimedes principle
Last Answer : Option B
Description : The device that most commonly utilizes the principle of electromagnetic induction is the _____________. A. diode B. transformer C. transistor D. rheostat
Last Answer : Answer: B
Description : The principle of AC generator is: a. Mutual induction b. self induction c. electromagnetic induction d. Induction
Last Answer : b. self induction
Description : Which of the following contributes to the broadening of laser emission bandwidth? a. Doppler shift of moving atoms and molecules b. Amplification within the laser medium c. Coherence of the laser light d. Optical pumping of the laser transition
Last Answer : a. Doppler shift of moving atoms and molecules
Description : Which of the following contributes to the broadening of laser emission bandwidth? ∙ a. Doppler shift of moving atoms and molecules ∙ b. Amplification within the laser medium ∙ c. Coherence of the laser light ∙ d. Optical pumping of the laser transition
Last Answer : Doppler shift of moving atoms and molecules
Description : LASER stands for: a. Light Amplification by Simulated Emission of Radiation b. Light Amplification by Stimulated Emission of Radiation c. Light Amplification by Simulated Emitted Rays d. Light Amplification by Stimulated Emitted Rays
Last Answer : b. Light Amplification by Stimulated Emission of Radiation
Description : Laser is the acronym for a) Light Amplification by Stimulated Emission of Radiation b) Light Amplification by Spontaneous Emission of Radiation c) Light Amplified by Stimulated Emission of Radiation d) Light Amplification by Standard Emission of Radiation
Last Answer : a) Light Amplification by Stimulated Emission of Radiation
Description : The practical application of electrostatic is: (a) Photocopier (b) X-rays machines (c) Laser (d) All of above 42. The electric field lines emerge from the charges in: (a) Three dimensions (b) Two dimensions (c) One dimension (d) All of above
Last Answer : (a) Photocopier
Description : State Faraday’s first law of electro-magnetic induction.
Last Answer : Whenever a magnetic field linked with a conductor changes, an induced e.m.f is generated in the conductor.
Description : Gauss' law of electricity, Gauss' law of magnetism, Faraday's law of induction, and Amperes' law form the basic equations of electromagnetism. This combination is collectively known as: w) Coulomb's equations x) Volta's equations y) Fermi's equations z) Maxwell's equations
Last Answer : ANSWER: Z -- MAXWELL'S EQUATIONS
Description : What are the Faradays laws of electrolysis?
Last Answer : First law The mass ions liberated at an electrode are directly proportional to the quantity of electricity (coulomb Q) which has passed through the electrolyte. That is M∝Q or M∝I ... several electrolyte the masses of the ions liberated are proportional to their respective chemical equivalent.
Description : Induced electric currents can be explained using which of the following laws? w) Gauss's Law x) Faraday's Law y) Ohm's Law z) Ampere's Law
Last Answer : ANSWER: X -- FARADAY'S LAW
Description : Any small element of space in the path of a wave may be considered as a source of secondary wavelet. A. De Morgan’s Principle B. Faraday’s Law C. Huygen’s Principle D. Fresnel’s Law of optics
Last Answer : C. Huygen’s Principle
Description : The Principle of an alternating current generator is based on: a. Coulomb’s law b. Ampere’s law c. Faraday’s law d. Lenz’s law
Last Answer : a. Coulomb’s law
Description : The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called __________ temperature. (A) Boyle (B) Inversion (C) Critical (D) Reduced
Last Answer : (A) Boyle
Description : The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the __________ temperature. (A) Critical (B) Boyle (C) Inversion (D) Reduced
Last Answer : (B) Boyle
Description : Two negative point charges are 2 meters apart and repel each other with a force of 2 newtons. When the distance between the charges is doubled, the force between them is w) one fourth as great x) one half as great y) twice as great z) four times as great
Last Answer : ANSWER: W -- ONE FOURTH AS GREAT
Description : A particle of mass m and charge Q moving with a velocity v enters a region on uniform field of induction B Then its path in the region is s
Last Answer : A particle of mass m and charge Q moving with a velocity v enters a region on uniform field of induction B ... . circular,If `v.B=0` D. None of these
Description : Which physical phenomenon or principle is most often applied in the search for petroleum reservoirs? w) magnetic field distortions x) electromagnetic radiation y) natural radioactive decay of minerals z) acoustic wave transmission and reflection
Last Answer : ANSWER: Z -- ACOUSTIC WAVE TRANSMISSION AND REFLECTION
Description : DIP stands for: a) Domain Inversion Principle b) Diodic Inversion Principle c) Dependency Inversion Principle d) None of These
Last Answer : c) Dependency Inversion Principle
Description : A charged particle is rotating in uniform circular motion in a uniform magnetic field . Let r= radius of circule, v= speed of particle k = kinetic ene
Last Answer : A charged particle is rotating in uniform circular motion in a uniform magnetic field . Let r ... angular speed. then match the following two columns.
Description : Assertion A charged particle is rotating in a circle. Then magnetic field (B) at centre of circle and magnetic moment (M) produced by motion of charge
Last Answer : Assertion A charged particle is rotating in a circle. Then magnetic field (B) at centre of circle and ... M and B are always parallel to each other.
Description : The branch of physics that deals with the motion of a very small particle is called- a)Field theory b)Particle Physics c)Quantum Mechanics d)Atomic Physics
Last Answer : c)Quantum Mechanics
Description : A charged particle is moving in a UNIFORM magnetic field. If the direction of motion of the charged particle is at right angles to the magnetic field, describe the shape of the charged particle's path.
Last Answer : ANSWER: CIRCULAR or CIRCLE
Description : A charged particle is moving in a UNIFORM magnetic field. If the direction of motion of the charged particle is parallel to the magnetic field, describe the shape of the charged particle's path.
Last Answer : ANSWER: STRAIGHT LINE
Description : A time varying electric field produces a magnetic field.' This phenomenon is called: (A) Hertz's law (B) Ampere Maxwell's law (C) Faraday's law
Last Answer : Answer: Option B
Description : The law that relates the electric field at the surface of a region to the amount of charge inside the region is called: w) Coulomb's Law x) Faraday's Law y) Gauss' Law z) Biot-Savart Law
Last Answer : ANSWER: Y -- GAUSS' LAW
Description : An atomic energy state in which more atoms are in the lower energy state E1 than in the excited state E2, is known as a) population inversion b) normal population c) stimulated population d) atomic population
Last Answer : b) normal population
Description : Define: Optical pumping & Population Inversion.
Last Answer : Optical pumping:- The process of raising the atoms from lower energy state to higher energy state using light medium is called optical pumping. Population inversion:- Making the population of ... level more than population of lower energy level by using light energy is called population inversion.