Description : Terminal potential difference of a battery is greater than its emf when a. the internal resistance of battery is infinite b. the internal resistance of battery is zero c. the battery is charged d. the battery is discharged
Last Answer : c. the battery is charged
Description : The resistance of a conductor at absolute zero (OK) is a. zero almost b. infinite almost c. May increase or decrease d. None
Last Answer : zero almost
Description : Resistance of a super conductor is a. Finite b. Infinite c. Zero d. changes with every conductor
Last Answer : c. Zero
Description : A wire loop is moved parallel to a uniform magnetic field. The induced emf in the loop: a. depends on the shape b. depends on area c. depends on nature of loop d. zero
Last Answer : d. zero
Description : The induced emf in a coil depends upon: a. Strength of magnetic field b. Resistance of the coil c. area of the coil d. All of them
Last Answer : d. All of them
Description : The current flowing in a coil due to induced emf depends upon: a. shape of coil b. resistance of coil c. area of coil d. magnetic flux
Last Answer : a. shape of coil
Description : Resistance of a wire on increasing its temperature will a. increase with rise in temperature b. decrease with rise in temperature c. will remain same d. depends upon altitude of experimentation
Last Answer : a. increase with rise in temperature
Description : When the medium is insulator the electrostatic force between the charges is: (a) Decreased (b) Zero (c) Increased (d) None of above
Last Answer : (a) Decreased
Description : Rest mass of the photon is a) Infinite b) Zero c) Very small d) 1.67 10-27 Kg
Last Answer : b) Zero
Description : When a motor is just started, back emf is almost ______: a. Infinite b. zero c. minimum d. maximum
Last Answer : d. maximum
Description : The magnetic field is _________ inside a solenoid a) Zero b) uniform c) non-uniform d) infinite
Last Answer : b) uniform
Description : The X-rays emitted in inner shell transitions are called _____ as their energy depends upon the type of target material. a) gamma rays b) special X-rays c) Characteristic X-rays d) continuous X-rays
Last Answer : c) Characteristic X-rays
Description : The mutual inductance of the coil depends upon: a. density of the coil b. stiffness of coil c. material of coil d. geometry of the coil
Last Answer : d. geometry of the coil
Description : Why the input resistance of an ideal OPAMP is infinite and output resistance is zero? secondly, how can we measure these resistances(input and output) in case of an ideal OPAMPand Real OP-AMP in the following conditions when 1- load is not connected. 2- load is connected.
Last Answer : Ans- Ideal OP-AMP is a power ful concept. If one goes through the history of amplifying devices it becomes clear that less it loads the previous stage better the output signal. ie ... . Can refer application notes by device manufacturer available in internet for more precise and practical solutions.
Description : Under ideal conditions, the collector current is (a) Equal to base current (b) Nearly equal to emitter current (c) Less than base current (d) always zero
Last Answer : (b) Nearly equal to emitter current
Description : A doped semiconductor is called : a) Extrinsic b) Intrinsic c) Insulator d) Conductor
Last Answer : b) Intrinsic
Description : Pure semiconductors silicon and germanium are a) Extrinsic b) Intrinsic c) Insulator d) Diodes
Description : Due to self-inductance, the coil wires are known as: a. Insulator b. Conductor c. Inductor d. Semi-conductor
Last Answer : c. Inductor
Description : A wire having very high value of conductance is said to be a. very good conductor b. moderately good conductor c. an insulator d. None
Last Answer : a. very good conductor
Description : If a material object moves with the speed of light ‘c’ its mass becomes a) equal to its rest mass b) Four times of its rest mass c) Double of its rest mass d) Infinite
Last Answer : d) Infinite
Description : If PN junction is forward biased its resistance is (a) Zero (b) Infinity (c) A few ohm (d) A few kilo ohms
Last Answer : c) A few ohm
Description : A wire of uniform area of cross-section A length L and resistance R is cut into two parts. Resistivity of each part a. remains the same b. is doubled c. is halved d. becomes zero
Last Answer : a. remains the same
Description : Resistance of a conductor depends upon a. nature of conductor b. dimension of conductor c. physical state of the conductor d. all of above
Last Answer : d. all of above
Description : Consider the following statements: 1. Mathematically speaking, the time taken for 100% consolidation is infinite. 2. The time factor for a particular average degree of consolidation depends upon the distribution of initial excess hydrostatic ... 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only
Last Answer : (b) 1 & 2 only
Description : Can infinite and finite coexist?
Last Answer : No, this why the concept of God is flawed from the start.
Description : Is the set of all information infinite or finite?
Last Answer : Must be a guy thing.
Description : To solve the FEM problem, it subdivides a large problem into smaller, simpler parts that arecalled a.static elements b.dynamic elements c.infinite elements d.finite elements
Last Answer : d.finite elements
Description : Which of the following sets in an finite/infinite set ? `(i)` Set of divisors of `24` `(ii)` Set of all real number which lie between `1` and `2` `(ii
Last Answer : Which of the following sets in an finite/infinite set ? `(i)` Set of divisors of `24` `(ii)` ... India. `(iv)` Set of all three digit natural numbers
Description : What are discrete parameter systems? *1 point (A) Systems which have infinite number of degree of freedom (B) Systems which have finite number of degree of freedom (C) Systems which have no degree of freedom (D) None of the above
Last Answer : (B) Systems which have finite number of degree of freedom
Description : What are discrete parameter systems? A. Systems which have infinite number of degree of freedom B. Systems which have finite number of degree of freedom C. Systems which have no degree of freedom D. None of the above
Last Answer : B. Systems which have finite number of degree of freedom
Description : What are discrete parameter systems?a. Systems which have infinite number of degree of freedom b. Systems which have finite number of degree of freedom c. Systems which have no degree of freedom d. None of the above
Last Answer : b. Systems which have finite number of degree of freedom
Description : In register stack a stack can be organized bya____——_—s number of register. a. Infinite number b. Finite number c. Both d. None
Last Answer : b. Finite number
Description : An off-hook signal will repeat for a/an ________duration. (A) finite (B) infinite (C) duration of 40 seconds (D) duration of 80 seconds
Last Answer : (A) finite
Description : Raw materials such as forest and food are termed as a. A. Infinite resources B. Finite resources C. Finite renewable resources D. Finite non renewable resources E. All of the above
Last Answer : C. Finite renewable resources
Description : In Fresnel diffraction A. source of light is kept at infinite distance from the aperture B. source of light is kept at finite distance from the aperture C. Convex lens used D. aperture width is selected so that it can acts as a point source
Last Answer : B. source of light is kept at finite distance from the aperture
Description : If f(x, y) is a digital image, then x, y and amplitude values of f are (A) Finite (B) Infinite (C) Neither finite nor infinite (D) None of the above
Last Answer : (A) Finite
Description : Impedance of ideal op-amp is A. zero B. 1 C. infinite D. 2
Last Answer : infinite
Description : Momentum of two objects moving with same speed but in opposite direction upon collision is A. increased B. decreased C. is zero D. is infinite
Last Answer : is zero
Description : Ideal resistance of ammeter is A. 1 Ω B. 2 Ω C. 0 Ω D. infinite
Last Answer : 0 Ω
Description : 13) In an ideal transformer A. windings have no resistance B. core has no losses C. core has infinite permeability D. all of the above
Last Answer : D. All of the above
Description : Themechanicalsplice isbestsuited for a. quicker installation under ideal conditions b. minimum attenuation losses c. field service conditions d. situations in which cost of equipment is not a factor
Last Answer : c. field service conditions
Description : A body will behave as an “ideal black body” when it acts as: a) A perfect absorber b) A perfect radiator c) A body to have absorption power equal to one d) All of the above
Last Answer : d) All of the above
Description : An ideal transformer always obeys the law of conservation of........: a. energy b. momentum c. charge d. Flux
Last Answer : b. momentum
Description : The absorption ofradiowaves bythe atmosphere depends on a. their frequency b. their distance from the transmitter c. the polarization of the waves d. the polarization of the atmosphere
Last Answer : a. their frequency
Description : Thevelocityfactor of a transmissionline a. depends on the dielectric constant of the material used b. increases the velocity along the transmission line c. is govern by the skin effect d. is higher for a solid dielectric than for air
Last Answer : a. depends on the dielectric constant of the material used
Description : .In electromagneticwaves,polarization a. is caused by reflection b.isdue to the transversenature ofthewaves c. results from the longitudinal nature of the waves d. is always vertical in an isotropic medium
Last Answer : b.isdue to the transversenature ofthewaves
Description : Noble prize was awarded to De-Broglie for his work on particle nature of light in a) 1929 b) 1937 c) 1905 d) 1915
Last Answer : a) 1929
Description : Which of the following phenomena provides a convincing proof for wave nature of radiation a) Reflection b) Refraction c) Polarization d) Interference and diffraction
Last Answer : d) Interference and diffraction
Description : Two electron beams move parallel to each other. The nature of force between them is a) Attractive b) Repulsive c) Dependent on magnitude of velocity d) None
Last Answer : b) Repulsive
Description : For an ideal gas, the internal energy depends upon its __________ only. (A) Molecular size (B) Temperature (C) Volume (D) Pressure
Last Answer : (B) Temperature