Description : What is the flow of electrons from one atom to another called?
Answer : Electric current
Description : The number of electrons in the outer most orbit of carbon atom is?
Answer : The number of electrons in the outer most orbit of carbon atom is 4.
Description : role of the series resistance connected in PMMC movement.
Answer : A PMMC Instrument can be used as voltmeter by just connecting a series resistance with the moving coil. This series resistance is called Voltmeter Multiplier. This combination of moving coil and ... current whose voltage is to be measured. Ideally the resistance of voltmeter should be infinite
Description : What is the force that holds protons and neutrons together in the nucleus of an atom?
Description : Do electrons flow from the anode to the cathode?
Answer : electrons flow from cathode to anode because the electron has a negative charge and repels from the negatively charged cathode whilst also attracting to the positively charged anode.
Description : The substances which have a large number of free electrons and offer a low resistance are called?
Answer : The substances which have a large number of free electrons and offer a low resistance are called conductors.
Description : What are ways we can measure the flow of electrons?
Description : What is the direction of the flow of electrons?
Answer : Electrons flow cathode to anode or in an oposite direction of convection current flow or holes.
Description : What are the number of valence electrons of atoms in semiconductor?
Answer : There are four valence electrons in the atom of a semiconductor.
Description : Which have more free electrons: conductors or insulators?
Answer : Conductors have many free electrons whereas insulators have very few or none at all.
Description : Which way do electrons flow in an electrochemical cell?
Description : why current flows in opposite direction of electrons?
Answer : Hi team, the current flow is nothing but flow of electrons But the conventional direction I'd opposite to actual current flow . ..
Description : The idea that electrons revolved in orbits around the nucleus of an atom without radiating energy away from the atom was postulated by: w) Thompson x) Bohr y) Rutherford z) Einstein
Answer : ANSWER: X -- BOHR
Description : A neutral atom with an atomic number of five has electrons equal to: A. 1 B. 5 C. none D. depends on the type of atom
Answer : A neutral atom with an atomic number of five has electrons equal to: 5
Description : In Bohr's theory of the atom, what force was responsible for holding the electrons in their orbit?
Answer : ANSWER: COULOMB FORCE or THE FORCE OF ATTRACTION BETWEEN THE PROTON (NUCLEUS) AND THE ELECTRON
Description : What is the process by which an atom gains electrons? w) Reduction x) Neutralization y) Electrolysis z) Oxidation
Answer : ANSWER: W -- REDUCTION
Description : 1. What is the number of electrons in an atom of atomic number Z and mass number A? 2. With which of the following fields is M. F. Hussain associated? 3. Which is the Slack Season' in ... 19. What are Shield volcanoes? 20. Mughal dynasty was to Bahadur Shah Zafar-as what was Lodi dynasty to?
Answer : Answer : 1. Z 2. Painting 3. Jan.-June 4. Australia 5. Valanadu 6. Stomata 7. 9th December, 1946 8. Measuring flask 9. China 10. Rajaraja Chola I 11. Vocal music 12. Abidjan 13. ... N. Rao 17. By radiation only 18. Useful but need strict regulation 19. Repeated lava flows 20. Ibrahim Lodi
Description : What particles move around the nucleus of an atom and are negatively charged? (1) Electrons (2) Protons (3) Positrons (4) Neutrons
Answer : Electrons
Description : How many electrons are there in the valence shell of a calcium atom?
Answer : ANSWER: 2
Description : How many valence electrons does an atom of an element with an atomic number of twelve have?
Answer : ANSWER: TWO
Description : Atomic number of an atom gives the number of which of the following ? (1) electrons (2) protons (3) neutrons (4) neutrons and protons
Answer : protons
Description : Which of the following does the Nucleus of an atom consist of? (1) Protons and neutrons (2) Protons and electrons (3) Electrons (4) Protons
Answer : Protons and neutrons
Description : The chemical bahaviour of an atom depends upon (1) the number of protons in its nucleus (2) the number of neutrons in the nucleus (3) the number of electrons orbiting around the nucleus (4) the number of nucleons in the nucleus
Answer : the number of electrons orbiting around the nucleus
Description : “All the four quantum numbers of two electrons in an atom are not the same.” It is the law of — (1) Hund’s (2) Exclusion Principle of Pauli (3) Uncertainty Principle of Hiesenberg (4) Avogadro’s Law
Answer : Exclusion Principle of Pauli
Description : If an atom loses one or more electrons, it becomes _____.
Answer : It becomes positively charged atom.
Description : What is the radius of an imaginary shell around an atom which determines how close two nonbonded atoms may approach each other called?
Answer : ANSWER: VAN DER WAALS RADIUS
Description : Your school building is just adjacent to a Cinema Hall. It generates delinquency and spoil the young mind badly. Therefore, there is utter chaos in the school in the name of discipline. What alternative ... ) Start a movement for shifting of school building D) Raise your voice for student's welfare
Answer : B) Make a discipline committee to watch out such students and give them rigorous punishment
Description : The muscle attachment to the bone of lesser movement is called the muscle's: a) insertion b) head c) origin d) tail
Answer : ANSWER: C -- ORIGIN
Description : Electrons in the outer orbit are called: A. nuclei B. valences C. waves D. shells
Answer : Electrons in the outer orbit are called: valences
Description : What is shielding in NMR? A. Using a curved piece of metal to block an opponent’s attack B. Putting metal around an Rf source C. When the magnetic moment of an atom blocks the full induced magnetic field from surrounding nuclei D. Blocking parts of a molecule from Rf radiation
Answer : When the magnetic moment of an atom blocks the full induced magnetic field from surrounding nuclei
Description : 1. Which Act gave representation to Indians for the first time in the Legislature? 2. By which can the location and energy of an electron in an atom be specified? 3. What was the ... set of mansoon & are harvested in September-October? 20. Which philosophical system was founded by Vallabhacharya?
Answer : Answer : 1. Government of India Act, 1935 2. Quantum numbers 3. Balwant Rai Mehta 4. Pine 5. Bamiyan 6. Mother Teresa 7. Number of WBCs increases in blood 8. Prime Minister 9. Equatorial ... -bin-Tughlaq 16. By combining various foods 17. Constitution of India 18. Xenon 19. Kharif 20. Suddhadvaita
Description : Movement exhibited by plants toward the "center of the Earth" is called?
Answer : ANSWER: GEOTROPISM
Description : Which of the following organelles is called ‘Atom bombs’ ? (1) Microtubules (2) Nucleolus (3) Golgi bodies (4) Lysosome
Answer : Lysosome
Answer : The random motion of holes and free electrons due to thermal agitation is called Diffusion.
Description : Nerve impulses to and from the brain travel as fast as 170 miles per hour. Ever wonder how you can react so fast to things around you or why that stubbed toe hurts right away? It's due to the ... rest of your body and vice versa, bringing reactions at the speed of a high powered luxury sports car.
Description : The recommendation of National Knowledge Commission for the establishment of 1500 Universities is to (A) create more teaching jobs (B) ensure increase in student enrolment in higher education (C) ... pu blic institutions (D) enable increased movement of students from rural areas to urban areas
Answer : Answer: B Na tional Knowledge Commission of the Government of India on Higher Education lays down certain guidelines for the betterment of the system. The NK C recommendations on higher education ... sector in the country, and providing access to higher education for larger numbers of students.
Description : Water cycle refers to (1) an integrated attempt to recycle water in relatively arid regions (2) constant movement of water from ocean to land and back to ocean once again (3) scientific management of water in areas excessively plagued with water-logging (4) water distribution in relatively dry areas
Answer : constant movement of water from ocean to land and back to ocean once again
Description : Free Trade refers to (1) free movement of goods from one country to another (2) movement of goods free of cost (3) unrestricted exchange of goods and service (4) trade free of duty
Answer : free movement of goods from one country to another
Description : Suppose that 1000 electrons are removed from a neutral dielectric. How much charge, in coulombs, is stored in the dielectric?
Description : A hydrogen atom making a direct transition from an upper energy level to the ground (lowest) energy level A. emits a photon which has an energy which depends on the temperature of the atom. B. ... which has an energy which depends on the temperature of the atom. E. emits a continuous spectrum.
Answer : B. emits a photon with an energy exactly equal to the difference in energy between the two states.
Description : In changing from an energy state of -1.51 electron-volts to -3.40 electron-volts, an atom emits a photon whose energy is: w) 1.51 electron-volts x) 1.89 electron-volts y) 3.40 electron-volts z) 4.91 electron-volts
Answer : ANSWER: X -- 1.89 ELECTRON-VOLTS
Description : Davisson and Germer scattered electrons from a crystal of nickel. The scattered electrons formed a strong diffraction pattern. What important conclusion was drawn from this experiment?
Answer : ANSWER: ELECTRONS ACTED LIKE WAVES
Description : When radiation breaks an electron pair bond in a molecule and each fragment of the molecule gets one of the bond electrons, the molecular fragments that are formed are called: w) ions x) free radicals y) stable molecules z) gases
Answer : ANSWER: X -- FREE RADICALS
Description : A level of atmosphere which is composed partly of electrons and positive ions is called (1) Troposphere (2) Ionosphere (3) Stratosphere (4) Mesosphere
Answer : Ionosphere
Description : Materials with lots of free electrons are called? A.conductors B.insulators C.semiconductors D.filters
Answer : Materials with lots of free electrons are called? A.conductors B.insulators C.semiconductors D.filters
Description : The emission of a positron from a radioactive atom is generally accompanied by the emission of one of the following. Is it accompanied by the emission of: w) a meson x) a baryon y) an antineutrino z) a neutrino
Answer : ANSWER: Z -- A NEUTRINO
Description : The word atom is from a Greek word meaning: w) small x) indivisible y) unseen z) visible
Answer : ANSWER: X -- INDIVISIBLE
Answer : The diameter of atomic ranges from 0.1 to 0.5 nanometer.