Description : Ina _____scheme,all the signal levels are onone sideof the time axis,either above or below. A) polar B) bipolar C) unipolar D) all of theabove
Last Answer : unipolar
Description : In______ schemes, the voltagesare on the both sidesof the time axis. Forexample, thevoltage level for 0 can bepositive and thevoltage level for 1 can be negative. A) polar B) bipolar C) unipolar D) all of theabove
Last Answer : polar
Description : Unipolar, bipolar, and polar encoding are typesof _______ encoding. A) line B) block C) NRZ D) Manchester
Last Answer : line
Description : In_______encoding, the duration of the bit is divided into twohalves. Thevoltage remains at one level during thefirst half and moves to the other level in the second half. The transition at the middle of the bit ... Manchester B) differential Manchester C) both (a) and (b) D) neither (a) nor (b)
Last Answer : both (a) and (b)
Description : Is BJT unipolar or bipolar Why?
Last Answer : Bipolar Junction Transistor (BJT) is a bipolar device because current is carried by both holes and electrons hence it is called bipolar.
Last Answer : IGBT is a bipolar device.
Description : Three points A, B and C 500 m apart on a straight road have 500 m, 505 m and 510 m as their reduced levels. The road is said to have (A) No gradient between A and C (B) A positive gradient between A and C (C) A negative gradient between A and C (D) A negative gradient between A and B
Last Answer : Answer: Option D
Description : Which of the following terms denotes the polar molecules or negative ions clustered about a central positive ion? w) ligands x) isomers y) complex ions z) dipoles
Last Answer : ANSWER: W -- LIGAND
Description : What is the name given to a polar molecule or negative ion that is clustered about a central positive ion?
Last Answer : ANSWER: LIGAND
Description : The transmission signal coding method of TI carrier is called a. Bipolar b. NRZ c. Manchester d. Binary
Last Answer : Bipolar
Description : In one's complement arithmetic, if positive 7 is 0111, then negative 7 is ________. A) 1111 B) 1101 C) 1000 D) none of the above
Last Answer : 1101
Description : Which encoding method uses alternating positive and negative values for1s? A) NRZ-I B) RZ C) Manchester D) AMI
Last Answer : AMI
Description : If we have a positive and a negative charge, then force between them is A. positive B. negative C. zero D. infinite
Last Answer : . negative
Description : Why JFET is called a unipolar transistor?
Last Answer : In JFET, the current conduction is either by electrons or holes and controlled by means of an electric field between the gate electrode and the conducting channel of the device, So it is called as a unipolar transistor.
Description : The following statement about lithium is not correct: A. It has a sedative action in normal individuals B. It controls mania, but takes 1-2 weeks to produce the effect C. ... recurrent unipolar depression D. It can be combined with tricyclic antidepressants for refractory cases of major depression
Last Answer : A. It has a sedative action in normal individuals
Description : Compare between BJT and FET on the basis of (i) Biolar/Unipolar (ii) Tharmal Runaway (iii) Noise (iv) Applications
Last Answer : Parameter BJT FET Bipolar/Unipolar It is bipolar device i.e. current in this device is carried by electrons and holes. It is unipolar device i.e. current ... in oscilloscopes, electronic voltmeters and other measuring and testing equipment because of their high input impedance.
Description : Explain DC coupled drive circuit with unipolar output.
Last Answer : DC coupled drive circuit with unipolar output: The figure shows the circuit and waveforms
Description : The ______ scheme uses three levels (+V, 0, and-V) andthree transition rules to move betweenthe levels. A) 4B5B B) 2B1Q C) MLT-3 D) none of the above
Last Answer : MLT-3
Description : A characteristic of cell staining of Y. pestis is a a. Gram-Positive Staining. b. Bipolar Staining. c. Gram-Positive Staining. d. Gram-Variable Staining.
Last Answer : b. Bipolar Staining
Description : Q: Is zero a positive or a negative number? -General Knowledge
Last Answer : None of the two mentioned above
Description : A particle of mass m is moving along a straight path through the origin of coordinates with a velocity v. The angular momentum of the particle about the origin (a) mv (b) Depends on its distance from origin (c) Is zero (d) Changes from positive to negative as it passes through the origin
Last Answer : Ans:(c)
Description : The electron affinity for the inert gases is (a) Zero (b) High (c) Negative (d) Positive
Last Answer : Ans:(a)
Description : If two commodities are complements, then their crossprice elasticity is- (1) zero (2) positive (3) negative (4) imaginary number
Last Answer : (4) imaginary number Explanation: In economics, the cross elasticity of demand or cross-price elasticity of demand measures the responsiveness of the demand for a good to a change in ... denotes two products that are complements, while a positive cross elasticity denotes two substitute products.
Description : Cross elasticity of demand between petrol and car is - (1) infinite (2) positive (3) zero (4) negative
Last Answer : (4) negative Explanation: In economics, the cross elasticity of demand or cross-price elasticity of demand measures the responsiveness of the demand for a good to a change in the ... denotes two products that are complements, while a positive cross elasticity denotes two substitute products
Description : In the case of an inferior good, the income elasticity of demand is : (1) Zero (2) Negative (3) Infinite (4) Positive
Last Answer : (2) Negative Explanation: A negative income elasticity of demand is associated with inferior goods; an increase in income will lead to a fall in the demand and may lead to changes to more luxurious ... demand is associated with normal goods; an increase in income will lead to a rise in demand.
Description : If total utility is maximum at a point, then marginal utility is - (1) positive (2) zero (3) negative (4) positive but decreasing
Last Answer : (2) zero Explanation: Marginal utility of a good or service is the gain (or loss) from an increase (or decrease) in the consumption of that good or service. As the rate ... increase in consumption of units of commodities causes marginal utility to become negative; this signifies dissatisfaction.
Description : The total energy of revolving electron in an atom – (1) cannot be negative (2) can have any value above zero (3) can never be positive (4) will always be positive
Last Answer : (3) can never be positive Explanation: The total energy of a revolving electron in any orbit is the sum of its kinetic and potential energies. Energy of an electron at infinite distance from the ... and the energy of electron decreases and thus becomes negative. Thus, it can never be positive.
Description : The focal length of a plane mirror is (1) Positive (2) Negative (3) Zero (4) Infinity
Last Answer : (4) Infinity Explanation: A plane mirror is a mirror with a flat reflective surface. The focal length of a plane mirror is infinity. Its optical power is zero.
Description : If a 6 volt battery were connected in series with a 24 volt battery by putting their negative terminals together, what would be the result? A. 'Zero' volts B. 12 volts of the opposite polarity C. 18 volts, positive on the 24 volt battery D. 30 volts, negative on the 24 volt battery
Last Answer : Answer: C
Description : What is meant by positive, negative and zero sequence reactance.
Last Answer : The reactance diagram of a power system, when formed using positive, negative and zero sequence reactances are called positive, negative and zero sequence reactance diagram resp.
Description : What is meant by positive, negative and zero sequence impedance.
Last Answer : The impedance of the circuit element for positive, negative and zero sequence component currents are called positive, negative and zero sequence impedances resp.
Description : Gravitational potential is always A. infinite B. zero C. positive D. negative
Last Answer : negative
Description : In frequency modulation, amplitude of modulated wave is A. positive B. negative C. constant D. zero
Last Answer : constant
Description : If frequency of modulated wave is less than frequency of carrier wave, then input signal is A. negative B. positive C. zero D. infinite
Description : Speed is unchanged because work done on an object is A. zero B. positive C. negative D. infinite
Last Answer : zero
Description : If the plates of capacitor are oppositely charged then the total charge is equal to A. negative B. positive C. zero D. infinite
Description : Gravitational potential is always A. positive B. negative C. zero D. infinity
Description : If the gradient of a graph is negative, then the acceleration is A. positive B. negative C. zero D. 1
Description : Price movement between two Information Technology stocks would generally have a co-variance. A. zero B. positive C. negative
Last Answer : B. positive
Description : What you mean by positive sequence, negative sequence and zero sequence of voltage?
Last Answer : Positive phase sequence A system of vectors is said to have positive sequence if they are all of equal magnitude and are displaced by 120° with same time interval to arrive at fixed axis of reference ... in all the 3- phases. Such phase sequence is zero phase sequence.
Description : The magnetic susceptibility in a superconductor will be a) Positive b) Negative c) Zero d) Infinity
Last Answer : b) Negative
Description : The potential taken between two points across a resistor will be a) Positive b) Negative c) Zero d) Infinity
Description : When total product remains constant the marginal product will be a. Zero b. Negative c. Positive d. Constant
Last Answer : a. Zero
Description : Joule-Thomson co-efficient for a perfect gas is (A) Zero (B) Positive (C) Negative (D) None of these
Last Answer : (A) Zero
Description : firm's marginal revenue A.is always negative B.can be positive C.is always positive D.is zero at point at which the total revenue is maximum
Last Answer : D.is zero at point at which the total revenue is maximum
Description : According to principle of moments (A) If a system of coplanar forces is in equilibrium, then their algebraic sum is zero (B) If a system of coplanar forces is in equilibrium, then the ... of their resultant about the same point (D) Positive and negative couples can be balanced
Last Answer : (C) The algebraic sum of the moments of any two forces about any point is equal to moment of their resultant about the same point
Description : . Free energy change at equilibrium is (A) Zero (B) Positive (C) Negative (D) Indeterminate
Description : The change in Gibbs free energy for vaporisation of a pure substance is (A) Positive (B) Negative (C) Zero (D) May be positive or negative
Last Answer : (C) Zero
Description : A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is (A) Zero (B) Positive (C) Negative (D) None of these
Last Answer : (C) Negative
Description : Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is (A) Positive (B) Negative (C) Zero (D) Infinity
Last Answer : C) Zero