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Question: Which of the following processes is used to concentrate ores?Options: ElectrolysisLeaching..
Question: What is the main component of the alloy brass?Options: Copper and tinCopper and zincIron a..
Question: In the extraction of metals, what is the role of a flux?Options: To increase the temperatu..
Question: Which of the following metals is extracted using the electrolytic reduction method?Options..
Question: What is the output of an AND gate with inputs A = 0 and B = 1?Options: 012UndefinedCorrect..
Question: What is the primary function of a transponder in satellite communication?Options: To ampli..
Question: Which of the following is a characteristic of isotopes?Options: Same number of protons, di..
Question: What is the energy of the ground state of a hydrogen atom?Options: -13.6 eV-3.4 eV0 eV13.6..
Question: What is the total number of orbitals in the n=2 energy level?Options: 2468Correct Answer: ..
Question: In a hydrogen atom, which transition emits the photon with the highest energy?Options: n=2..
Question: In which of the following scenarios is the magnetic force on a charged particle zero?Optio..
Question: What happens to the magnetic field strength when the distance from a long straight conduct..
Question: What is the magnetic field inside a long solenoid carrying current?Options: ZeroUniform an..
Question: A charged particle moves in a magnetic field. What path does it follow?Options: Straight l..
Question: What is the force experienced by a charge q moving with velocity v in a magnetic field B a..
Question: What happens to the induced EMF if the speed of a conductor moving through a magnetic fiel..
Question: In a generator, mechanical energy is converted into electrical energy through which proces..
Question: A transformer works on the principle of:Options: Electromagnetic inductionElectrostaticsMa..
Question: If the magnetic field through a loop is increasing at a constant rate, what can be said ab..
Question: A loop of wire is moved into a uniform magnetic field at a constant speed. What happens to..
Question: A coil with 100 turns is placed in a magnetic field that changes from 0.5 T to 1.5 T in 2 ..
Question: According to Faraday\'s law, the induced EMF in a circuit is proportional to what?Options:..
Question: Which of the following statements is true regarding the Biot-Savart Law?Options: It applie..
Question: For a circular loop of radius R carrying a current I, what is the magnetic field at the ce..
Question: What is the effect of increasing the distance from a long straight wire on the magnetic fi..
Question: In the Biot-Savart Law, what does the term \'dl\' represent?Options: The length of the wir..
Question: What is the direction of the magnetic field produced by a current-carrying loop at its cen..
Question: What is the relationship between the magnetic field and the enclosed current according to ..
Question: In a toroidal solenoid, how does the magnetic field strength depend on the number of turns..
Question: If the current in a wire is reversed, what happens to the direction of the magnetic field ..
