# resistivity of wire depend on?

resistivity of wire depend on?

Resitivity of wire depends on material, electrical resistance of that material, area of cross section and length.

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Description : Problems on resistance and resistivity

Answer : Problem on resistance and resistivity 1 : https://youtu.be/OqavD7OlZUs Problem on resistance and resistivity 2 : https://youtu.be/0eo8VO8cpwk Problem on resistance and resistivity 3 : https:// ... https://youtu.be/3neLRCTz0RQ Problem on resistance and resistivity 13 : https://youtu.be/vBCkvPOiztY

Description : Problem on resistance and resistivity 13

Answer : Problem on resistance and resistivity 13

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Answer : Problem on resistance and resistivity 12

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Answer : Problem on resistance and resistivity 10

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Answer : Problem on resistance and resistivity 8

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Answer : Problem on resistance and resistivity 6

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Description : Problem on resistance and resistivity 1

Answer : Problem on resistance and resistivity 1

Description : Define resistivity. State its unit.

Answer : Resistivity can be defined as the resistance of a conducting material per unit length with unit area of cross section. Its unit is ohm/meter

Description : Which material has low resistivity?

Answer : Silver have lowest resistivity then copper then aluminium tungsten then iron...

Description : What factors affect resistivity?

Answer : 1)type of material 2)temperature 3)length and area of cross section of conductor

Description : What is the formula for resistivity?

Answer : Resitivity is the property of a material. It is given in ρ . R=ρ L/A is the formula. where , Resitance is directly proportional to Length & Inversely proportional to Area of ... the resistance offered by a conductor to the flow of current is called specific resistance or resistivity.

Description : What is the reciprocal of resistivity?

Description : State the factors on which the selection of type of materials depend.

Answer : Factors for selection of materials. 1. Carry prescribed loads: The most significant requirement of a material used in civil engineering project is that it should be able to carry the design loads ... such as floor coverings, paints, and doors and window are chosen based on aesthetic consideration.

Description : What are the factors that a rational agent should depend on at any given time?

Answer : 1. The performance measure that defines degree of success. 2. Ever thing that the agent has perceived so far. We will call this complete perceptual history the percept sequence. 3. When the agent knows about the environment. 4. The action that the agent can perform.

Description : Spectroscopy is the study of the properties of light that depend on

Description : The amount of heat required to change a boiling liquid to a gas at the same temperature depends on one of the following properties of the liquid. Does it depend on the liquid's: w) heat of fusion x) heat of vaporization y) temperature z) density

Description : On which of the following does the capacity of a kilogram of air for holding water depend? w) the air pressure x) the air temperature y) the dust content of the air z) the ions in the air

Description : Fungi depend on other organisms for: a) water b) food c) carbon dioxide d) hydrogen

Description : The male students in your class are annoyed with you on the pretext you that have a favour to the female students. In such an embarrassing situation how would you like to control them in class? ... students that it is difficult for you refuse the request made by female students D) None of these

Answer : B) You will justify that most of the female students are more sincere towards their studies than male students.

Description : Which of the following statement is correct? Options: A) Reliability ensures validity B) Validity ensures reliability C) Reliability and validity are independent of each other D) Reliability does not depend on objectivity

Answer : C) Reliability and validity are independent of each other

Description : When girl-students make a request, the other male students are annoyed with you on the pretext that you have been easily approached by them and do a favour. In such a situation how ... assistance D) You will try to improve the interaction in the class without emphasizing gender discrimination

Answer : B) You will justify that most of the girl students are more sincere towards their studies than the boys

Description : Which of the following statement is correct ? (A) Reliability ensures validity (B) Validity ensures reliability (C) Reliability and validity are independent of each other (D) Reliability does not depend on objectivity

Answer : Answer: B  These two terms, reliability and validity, are often used interchangeably when they are not related to statistics. When critical readers of statistics use these terms, however, they refer to different ... step on it) but will not be valid, since it is not reading your actual weight.

Description : 1. The pressure at the bottom of a liquid tank does not depend on which area? 2. Chinaman' refers to which game? 3. In human body, into which does the pancreas secretes its enzymes? 4. ... is the frequency of tropical cyclones in the Bay of Bengal maximum? 20. By whom was Saka era founded?

Answer : Answer : 1. Area of the liquid surface 2. Cricket 3. Duodenum 4. Rise in earth temperature 5. A work of the Jains 6. English 7. Decreases 8. Rajkumari Amrit Kaur 9. North west 10. ... Australia 15. Kanishka 16. Carbon dioxide 17. Sir Edward Lutyens 18. Bengali 19. After summer 20. Kanishka

Description : Which of the following statement(s) is/are correct with reference to curve generation? I. Hermite curves are generated using the concepts of interpolation. II. Bezier curves are generated using the concepts of approximation. III. The ... (B) II and III only (C) I and II only (D) I, II and III only

Answer : (D) I, II and III only

Description : Gliders depend on the following energy for their flight: (1) wind energy (2) electrical energy (3) heat energy (4) chemical energy

Description : The deciduous trees will (1) shed their leaves every year (2) not lose their leaves (3) synthesise their own food (4) depend on others for their food

Answer : shed their leaves every year

Description : Saprophytes are the organisms which depend for food on (1) living plants (2) living animals (3) dead and decaying material (4) inorganic chemical compounds

Description : The colours of stars depend on their (1) temperature (2) distance (3) radius (4) atmospheric pressure

Description : Velocity of sound in air does not depend on (1) Density of air (2) Temperature of air (3) Pressure of air (4) Humidity of air

Description : The velocity of sound in air (1) decreases with increase of temperature (2) increases with decrease of temperature (3) does not depend on temperature (4) decreases with decrease of temperature

Answer :  decreases with decrease of temperature

Description : Countries that depend mainly on the export of primary products for their income, are prone to (1) inflation (2) economic instability (3) increasing unemployment (4) stable economic growth

Description : The acceleration due to gravity at the equator (1) is less than that at the poles (2) is greater than that at the poles (3) is equal to that at the poles (4) does not depend on the earth’s centripetal acceleration

Answer : is less than that at the poles

Description : What does the entire economy of the island of Nauru depend on

Answer : Bird shit - Guano fertiliser

Description : The slip of an induction motor normally does not depend on  (A) rotor speed (B) synchronous speed (C) shaft torque (D) core-loss component

Answer : The slip of an induction motor normally does not depend on core-loss component

Description : The size of a transformer core will depend on?

Answer : The size of a transformer core will depend on frequency and area of the core.

Description : Why should switch be connected only on the live wire and never on the neutral wire?

Answer : Current runs from the transformer, through the protective device, through the load and back through the protective device (if on RCD).  If the protective device is only a CB the current passes ... the circuit will operate correctly but this is an unsafe practice and does not meet the standards.

Description : Compare CC and PC of wattmeter on the basis of:- (i) Connection (ii) Status (iii) Number of turns (iv) Gauge of wire.

Answer : Particulars Current coil (CC) Pressure coil (PC) Connection Connected in series with load Connected in parallel with load Status It is fixed coil in wattmeter It is moving coil in ... number of turns It is having more number of turns Gauge of wire Less More

Description : Increasing the number of turns of wire on the secondary of a transformer will  (A) Decrease the secondary current (B) Increase the primary current (C) Have no effect on the secondary current (D) Increase the secondary current

Answer : Increasing the number of turns of wire on the secondary of a transformer will Decrease the secondary current

Description : Define – resistance and resistivity. State relationship between them. Give one material having high resistivity.

Answer : Ans: Resistance and Resistivity: Resistance: It is the opposition offered by the conductor to the flow of current. Resistivity: It is property of the substance by virtue of which it opposes to ... high resistivity: Mica, Nichrom, Rubber, Glass, Plastic Porcelain, Dry wood, Insulating material etc.

Description : What is the correct sequence of the following materials in ascending order of their resistivity ?  1. Iron  2. Silver  3. Constantan  4. Mica  5. Aluminium  Select the correct answer using the codes given below :  (a) 2, 5, 1, 3 ... 5, 3, 1 and 2  (c) 2, 3, 1, 5 and 4  (d) 4, 5, 1, 3 and 2

Answer : What is the correct sequence of the following materials in ascending order of their resistivity ?  1. Iron  2. Silver  3. Constantan  4. Mica  5. Aluminium  Select the correct answer using the codes given below :  ... 1 and 2  (c) 2, 3, 1, 5 and 4  (d) 4, 5, 1, 3 and 2

Description : Materials, whose resistivity at very low temperatures plunges from a finite value to zero and remains there upon further cooling, are known as

Answer : Materials, whose resistivity at very low temperatures plunges from a finite value to zero and remains there upon further cooling, are known as Superconductors

Description : The resistivity of a semiconductor material increases as : (A) The temperature increases (B) The temperature decreases (C) The temperature remains constant (D) None of the above

Description : Which material is having highest resistivity in ohm-metre at 20oC X10-8? A. Mercury B. Iron C. Tungsten D. Silver

Answer : Mercury material is having highest resistivity in ohm-metre at 20oC X10-8

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