Description : Under ambient conditions, which among the following surfactants will form micelles in aqueous solution at lowest molar concentration ?
Last Answer : Under ambient conditions, which among the following surfactants will form micelles in aqueous solution at lowest molar ... N (CH_(3))_(3)Br^(-)`
Description : What is the largest application for surfactants?
Last Answer : About 60% of total surfactant market is composed of the detergent and cleaning products marketplace. These types of compounds are sold in large volumes at low prices.
Description : Surfactants.................................. the surface tension of spray droplets a). do not affect b). decrease c). increase d). All
Last Answer : b). decrease
Description : Surfactants are a). cationic b). Non-ionic c). Anionic d). All
Last Answer : d). All
Description : Constant physical agitation of the spray liquid during field operations can be minimised by adding a). Emulsifiers b). Coupling agents c). Surfactants d). Humicants
Last Answer : a). Emulsifiers
Description : Surfactants act as a). Wetting agent b). Spreading agent c). Penetrants d). All
Description : The odd one amongst the following a).Surfactants b). Activators c). Wetting agents d). Phytobland oils
Last Answer : b). Activators
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 : instrument which transfers energy to electric charges in a circuit isA. battery B. voltmeter C. ammeter D. galvanometer
Last Answer : battery
Description : The inductance is the measure of a) Electric charges stored by the material b) Emf generated by energising the coil c) Magnetic field stored by the material d) Magnetization of dipoles
Last Answer : c) Magnetic field stored by the material
Description : The electrostatic energy in an electric field does not depend on which of the following? a) Magnitude of charges b) Permittivity c) Applied electric field d) Flux lines
Last Answer : c) Applied electric field
Description : Find the electric field intensity of two charges 2C and -1C separated by a distance 1m in air. a) 18 X 10 9 b) 9 X 10 9 c) 36 X 10 9 d) -18 X 10 9
Last Answer : b) 9 X 10 9
Description : The isoelectric point of a protein is (a) the pH at which the protein molecule has no charges on its surface. (b) the pH at which a protein in solution has an equal number of positive and negative charges. (c) the electric charge under isothermal conditions. (b) None of these
Last Answer : the pH at which a protein in solution has an equal number of positive and negative charges
Description : How does the law of magnetic poles relate to the law of electric charges?
Last Answer : They are very similar; like charges repel, unlike charges attract, like poles repel —unlike poles attract.
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 : The electric field exist around: (a) Charges (b) On the left side (c) At the –ve charge (d) At the +ve charge
Last Answer : (a) Charges
Description : The space around the charge within which other charges are influenced by it is called: (a) Electric field (b) Magnetic field (c) Electric flux (d) Electric intensity
Last Answer : a) Electric field
Description : In case of two identical charges placed at certain distance, the electric lines of force are: (a) Curved (b) Straight lines (c) Both (a) and (b) (d) None of these
Last Answer : a) Curved
Description : The electric force between two charges placed in air is 2 Newton. When placed in a medium of ∈r = 80, the force reduced to: (a) 0.029 N (b) 0.025 N (c) 0.03 N (d) 0.04 N
Last Answer : (b) 0.025 N
Description : At a point halfway between two identical point charges, the electric field is equal to: w) zero x) half its maximum value y) its maximum value z) pointing away from the two charges
Last Answer : ANSWER: W -- ZERO
Description : Can the electric field between two positive charges be zero?
Last Answer : It can only if they have equal charges.
Description : Seiko takes pottery classes from two different studios. Paulas pottery charges $18 for clay and charges $10 per hour. Sallys ceramics charges $4 for clay and charges $12 per hour. After how many hours will the studios cost the same?
Last Answer : .
Description : If im on probation with two different cities and in one of them cities im so close to getting off of probation and the other city revokes my probation then should i tell my probation officer about the new charges and if so why or why not should them?
Last Answer : If you probation is revoked you will be going to jail even if you don't tell the one city they will find out when it is put into the system that you are wanted.
Description : When a monopolist charges different prices to each customer it is called price discrimination of – (a) First order ; (b) Second order ; (c) Third order ; (d) Fourth order
Last Answer : (a) First order ;
Description : In the mass spectrograph, two positively charged ions having the same velocity pass through a slit and enter a uniform magnetic field at right angles to their initial velocities. The ions will NOT be ... charges and their masses are equal z) the ratios of their charges to their masses are equal
Last Answer : ANSWER: Z -- THE RATIOS OF THEIR CHARGES TO THEIR MASSES ARE EQUAL