Description : Super conductors are substances that – (1) offer minimum resistance to flow of electric current (2) conduct electricity at low temperature (3) conduct electricity at high temperature (4) offer high resistance to the flow of electric current
Last Answer : (1) offer minimum resistance to flow of electric current Explanation: A superconductor is a material that can conduct electricity or transport electrons from one atom to another with no ... is released from the material when it reaches the temperature at which it becomes superconductive.
Description : Super conductors are substances that (1) offer minimum resistance to flow of electric current (2) conduct electricity at low temperature (3) conduct electricity at high temperature (4) offer high resistance to the flow of electric current
Last Answer : offer minimum resistance to flow of electric current
Description : Why is ity considered bad luck in Scotland to let the fire go out on Christmas eve?
Last Answer : Need answer
Description : The aggregate plann The aggregate planning strategy that is most likely ing strategy that is most likely to impact the prod to impact the productivity of ity of manufacturing workers, adversely, ... )Hiring of temporary workers b)Use of overtime c)Layoff of workers d)Building anticipation inventory
Last Answer : d)Building anticipation inventory
Description : Which of the following statement(s) is/are true concerning cellular ion channels? a. Ion channels are transmembrane proteins that form pores that can conduct ions across the plasma membrane b. ... undergo conformational changes between open states and closed states d. Ion channels can be blocked
Last Answer : Answer: a, b, c, d Ion channels are transmembrane proteins that form pores that can conduct ions across the plasma membrane. Ion channels are formed by membrane-spanning peptides that are arranged ... be blocked by ions or organic compounds that enter the channel, bind there, and occlude the pore
Description : Substances; that do not conduct elec- tricity are called?
Last Answer : Insulators
Description : Super conductors are those substances, which (A) Offer no resistance to current flow (B) Conduct electricity at low temperature (C) Offer high resistance to current flow (D) Conduct electricity at high temperature
Last Answer : (A) Offer no resistance to current flow
Description : Which one of the following correctly explains the function of a specific part of the human nephron? (a) Podocytes : create minute spaces (slit pores) for the filtration of blood into the ... blood capillaries (d) Afferent arteriole : carries the blood away from the glomerulus towards renal vein.
Last Answer : (a) Podocytes : create minute spaces (slit pores) for the filtration of blood into the Bowman’s capsule
Description : Carrier ions like Na+ facilitate the absorption of substances like (a) amino acids and glucose (b) glucose and fatty acids (c) fatty acids and glycerol (d) fructose and some amino acids.
Last Answer : (a) amino acids and glucose
Description : Why does cesium bromide in an aqueous solution conduct electric current?
Last Answer : Cesium bromide is dissociated in water in ions.
Description : The purpose of DC generator brushes is to _____________. A. neutralize armature reaction B. conduct electric current to an outside circuit C. convert DC current to AC current D. provide excitation to a DC generator
Last Answer : Answer: B
Description : Which of the following is not a characteristic of organic compounds? (a) They usually have low melting points. (b) They usually are only slightly soluble or insoluble in water. (c) If water ... they seldom conduct an electric current. (d) Bonds which bind the atoms together are nearly always ionic.
Last Answer : Bonds which bind the atoms together are nearly always ionic.
Description : What is the difference between the Earth’s electric field and the electric field used to conduct electricity in my home?
Last Answer : The Earth's electric field is A. The Earth's electric field is mainly a continuous mainly a continuous direct current (DC) producing fi direct current (DC) producing field. Throughout eld. Throughout history, ... on the job) and higher rates of Back to Top job) and higher rates of health problems.
Description : An ionized gas contains both positive and negative ions . If it is subjected simultaneously to an electric field along the ` +x` - direction and a mag
Last Answer : An ionized gas contains both positive and negative ions . If it is subjected simultaneously to ... y-direction and negative ions towards +y-direction
Description : Electric current in a metal wire is due to the flow of — (1) Electrons (2) Protons (3) Ions (4) Holes
Last Answer : (1) Electrons Explanation: A solid conductive metal contains mobile, or free electrons, originating in the conduction electrons. When a metal wire is connected across the two terminals of a DC ... the conductor are forced to drift toward the positive terminal under the influence of this field.
Description : Zero permeability/permittivity implies which state? a) No ions are allowed in the medium b) No current is generated in the medium c) No magnetic or electric energy is permitted in the medium d) No resistivity
Last Answer : c) No magnetic or electric energy is permitted in the medium
Description : Electric current in a metal wire is due to the flow of— (1) Electrons (2) Protons (3) Ions (4) Holes
Last Answer : Electrons
Description : (a) Show on a diagram the transfer of electrons between the atoms in the formation of MgO. Write symbols of cation and anion present in MgO. (b) Name the solvent in which ionic compounds are generally soluble. (c) Why are aqueous solutions of ionic compounds able to conduct electricity? -Chemistry
Last Answer : (b) Ionic compounds are soluble in water. (c) It is because aqueous solutions consist of ions which can move freely in them and carry current.
Description : Diamond does not conduct electricity, because - (1) It's structure is very compact (2) It is of crystalline nature (3) There are only carbon atoms present in it (4) No free electrons are present in it
Last Answer : (4) No free electrons are present in it Explanation: Diamond has a giant molecular structure. Each carbon atom is covalently bonded to four other car-bon atoms. There are no ... conduct electricity. Except for most blue diamonds, which are semiconductors, diamonds are good electrical insulators.
Description : C fibres transmitting pain sensation a. are present in less numbers than A fibres in sensory nerves b. conduct at an average velocity of 2 metres/secon c. convey temperature sensation d. terminate in laminae 2 and 3 of the dorsal horn
Last Answer : convey temperature sensation
Description : The QRC shall have the following functions: a. Conduct quality control review on applicants for registration to practice public accountancy and render a report on such quality review. b. Mete out ... with the standards of quality prescribed for the practice of public accountancy. d. All of these
Last Answer : Conduct quality control review on applicants for registration to practice public accountancy and render a report on such quality review.
Description : Diamond does not conduct electricity, because (1) It’s structure is very compact (2) It is of crystalline nature (3) There are only carbon atoms present in it (4) No free electrons are present in it
Last Answer : No free electrons are present in it
Description : Which ions are present in blood and surface water ?
Last Answer : Blood and surface water contain bicarbonate ions.
Description : The volume (in `mL`) of `0.1M Ag NO_(3)` required for complete precipitation of chloride ions present in `30 mL` of `0.01M` solution of `[Cr(H_(2)O)_(
Last Answer : The volume (in `mL`) of `0.1M Ag NO_(3)` required for complete precipitation of chloride ions present ... Cl]Cl_(2)`, as silver chloride is close to:
Description : How many total sodium ions are present in one formula uint of sodium ethane-1,2-diaminetetraacetatochromate (II) and sodium hexanitrito cobaltate (III
Last Answer : How many total sodium ions are present in one formula uint of sodium ethane-1,2- ... II) and sodium hexanitrito cobaltate (III) ?
Description : What type of ions are present in solution but are not actually involved in a chemical reaction?
Last Answer : These ions are called "spectators".
Description : If Mg Cl2 contains one Millions of Mg2+ Ions, then how many Chloride Ions are present in it?
Last Answer : Two million
Description : Pick out the wrong statement. (A) Nitrogen is normally supplied in fertiliser either in Ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions ornitrate ... nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens
Last Answer : (D) Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens
Description : In a neutral solution (A) H+ions are absent (B) OH ions are absent (C) Both H+ and OH ions are present in very small but equal concentration (D) None of these
Last Answer : (C) Both H+ and OH ions are present in very small but equal concentration
Description : What refers to the new substances present after a chemical reaction?
Last Answer : result
Description : Which of the following substances, not normally present in the circulation, trigger the initiating events in the hemostatic process? a. Thrombin b. Platelet factor 3 c. Tissue factor d. Collagen
Last Answer : Answer: c, d The initiating agents for hemostasis involve two substances that are not normally present in the circulation-collagen and tissue factor. Tissue factor is released from ... phospholipid surface to form the so-called prothrombinase complex which catalyzes the formation of thrombin
Description : In animals that do not present the circulatory system the transport of substances occurs by cell to cell diffusion. The blood is a fundamental means of substance transport for larger animals ... there are tissues distant from each other and from the environment thus making diffusion impossible.
Last Answer : What are the two types of circulatory systems?
Description : Radioactive substances present in the polluted water stream can be removed by (A) Biological oxygen treatment (B) Coagulation and filtration (C) Adsorption in ion exchange materials (D) None of these
Last Answer : (C) Adsorption in ion exchange materials
Description : __________ substances present in sewage are removed in grit chamber during sewage treatment. (A) Organic (B) Fatty (C) Inorganic (D) Dissolved
Last Answer : (C) Inorganic
Description : To the present time, over _____ antibiotic substances have been described and approximately _____ such drugs are available to the medical practitioner. a. 10,000; 100 b. 8,000; 100 c. 6000; 300 d. 4,000; 400
Last Answer : b. 8,000; 100
Description : Hormones are composed from many classes of molecules. As far as our present knowledge extends, hormones are NOT found in which of the following categories of substances: a) proteins b) peptides c) nucleic acids d) steroids
Last Answer : ANSWER: C -- NUCLEIC ACIDS
Description : An argument for including computer forensic training computer security specialists is: a. It provides an additional credential. b. It provides them with the tools to conduct their own investigations. c. It teaches them when it is time to call in law enforcement. d. None of the above.
Last Answer : c. It teaches them when it is time to call in law enforcement.
Description : Which one of the following can truthfully be said of non-school, active agencies of social interaction? Options: A) The less education people have, the more they use established recreational ... has proved undesirable D) The community council should conduct activities, not just to co-ordinate them
Last Answer : B) The largest items of the expenditure for leisure time activities are for those of a passive nature
Description : Negatively charged ions are called a. anions b. cations c. both d. none of them
Last Answer : anions
Description : Positively charged ions are called a. anions b. cations c. both d. none of them
Last Answer : cations
Description : Insulin increases the permeability of glucose across the plasma membrane of muscle cells by (A) Acting on adenylate cycle (B) By loosening the integrity of the membrane (C) Through Ca2 ... membrane cruting the hexose carries of intracellular organelles and making them fuse with the plasma membrane
Last Answer : Answer : D
Description : The resting potential in nerves is produced by difference in a. ions b. charges c. both d. none of them
Last Answer : both
Description : Substances which allow light to pass through them are called?
Last Answer : Transparent substances eg: glass
Description : Substances which do not pass light through them are called?
Last Answer : Opaque substances eg : paper; storie
Description : The absorbed substances finally reach the tissues which utilise them for their activities. This process is called_____
Last Answer : The absorbed substances finally reach the tissues which utilise them for their activities. This process is called_____