Description : If the plates of capacitor are oppositely charged then the total charge is equal to A. negative B. positive C. zero D. infinite
Last Answer : zero
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
Last Answer : negative
Description : Gravitational potential is always A. infinite B. zero C. positive D. negative
Description : Speed is unchanged because work done on an object is A. zero B. positive C. negative D. infinite
Description : If charge stored on plates of capacitor is large, then capacitance will be A. small B. large C. zero D. infinite
Last Answer : large
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 : Cross-price elasticity of demand between tea and coffee is (a) negative (b) positive © zero (d) infinite
Last Answer : (b) positive
Last Answer : Negative
Description : Cross elasticity of demand between petrol and car is (1) infinite (2) positive (3) zero (4) negative
Description : For an infinite sheet of positive charge, the electric field lines: w) run parallel to the sheet of charge x) are perpendicular to the sheet of charge and point in toward the sheet y) are perpendicular to the sheet of charge and point away from the sheet z) fall off as one over r squared
Last Answer : ANSWER: Y -- ARE PERPENDICULAR TO THE SHEET OF CHARGE AND POINT AWAY
Description : If charge is placed at infinity, it's potential is A. zero B. infinite C. 1 D. -1
Description : The work done by a friction force is: w) always positive x) always negative y) always zero z) either positive or negative depending upon the situation.
Last Answer : ANSWER: X -- ALWAYS NEGATIVE
Description : If the gradient of a graph is negative, then the acceleration is A. positive B. negative C. zero D. 1
Description : The cathode in an electrochemical cell always carries (A) Negative charge (B) Positive charge (C) Zero charge (D) Positive or negative charge depending upon the nature of the cell
Last Answer : (A) Negative charge
Description : Find the magnetic field intensity due to an infinite sheet of current 5A and charge density of 12j units in the positive y direction and the z component is below the sheet. a) 6 b) 0 c) -6 d) 60k
Last Answer : c) -6
Description : Find the magnetic field intensity due to an infinite sheet of current 5A and charge density of 12j units in the positive y direction and the z component is above the sheet. a) -6 b) 12k c) 60 d) 6
Last Answer : d) 6
Description : If the capacitors are connected in parallel, then the potential difference across each capacitor is A. same B. different C. zero D. infinite
Last Answer : same
Description : Electric field intensity due to infinite sheet of charge σ is a) Zero b) Unity c) σ/ε d) σ/2ε
Last Answer : d) σ/2ε
Description : In case of Complementary goods cross elasticity of demand will be (a) Negative (b) Zero (c) Unitary (d) Infinite
Last Answer : (a) Negative
Description : Area under current-time graph represents A. magnitude of charge B. dielectric C. amount of positive charge D. amount of negative charge
Last Answer : magnitude of charge
Description : The Millikan experiment showed that electric charge was: w) negative x) quantized y) positive z) unmeasurable
Last Answer : ANSWER: X -- QUANTIZED
Description : Point of contra-flexure is a (a) Point where Shear force is maximum (b) Point where Bending moment is maximum (c) Point where Bending moment is zero (d) Point where Bending moment=0 but also changes sign from positive to negative
Last Answer : (d) Point where Bending moment=0 but also changes sign from positive to negative
Description : Ten coulombs of positive charge are placed on an irregularly-shaped, solid piece of copper. Once the charge has stopped moving, the electric field inside the copper is: w) zero x) changes as one ... squared y) becomes smaller as you approach the center z) becomes larger as you approach the center
Last Answer : ANSWER: W -- ZERO
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 : In frequency modulation, amplitude of modulated wave is A. positive B. negative C. constant D. zero
Last Answer : constant
Description : Gravitational potential is always A. positive B. negative C. zero D. infinity
Description : For an electromagnetic wave traveling in a vacuum, if the magnitude of the intensity of the E field is zero, the magnitude of the intensity of the B field is: w) zero x) a negative maximum y) a positive maximum z) the square root of 2 times the positive maximum
Description : A constant potential difference is applied across the plates of a parallel-plate capacitor. Neglecting any edge effects, the electric field inside the capacitor is: w) constant x) varying as one over r squared y) decreasing as one moves from the positive to the negative plate z) zero
Last Answer : ANSWER: W -- CONSTANT
Description : During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge? (a) First positive, then negative and continue ... and again back to positive (d) First negative, then positive and again back to negative.
Last Answer : (d) First negative, then positive and again back to negative.
Description : If the angle of friction is zero a body will experience a.Infinite friction b.Zero friction c.The force of friction will act normal to the plane d.The force of friction will act in the direction of motion e.None of the above
Last Answer : b. Zero friction
Description : When sinking is accounted in a continuous beam the shear force is a.modified b.same c.zero d.infinite
Last Answer : a.modified
Description : For a point charge to feel a net force in a homogeneous magnetic field, which one of the following statements is true? The charge must: w) move parallel to the magnetic lines of flux x) have a component of its motion perpendicular to the lines of flux y) be stationary z) be a positive charge
Last Answer : ANSWER: X -- HAVE A COMPONENT OF ITS MOTION PERPENDICULAR TO THE LINES OF FLUX
Description : If we move a positive charge to a positive plate, then potential energy of charge is A. decreased B. increased C. remains constant D. dissipated
Last Answer : increased
Description : The weight of a body at the centre of earth is: (1) half the weight at the surface (2) zero (3) twice the weight at the surface (4) infinite
Last Answer : (2) zero Explanation: Weight of a body is the force with which it is attracted towards the centre of earth. The weight of a body, 'w' of mass `m' is given by: W = mg, where `g is the acceleration due ... of earth, value of 'g' is zero. Therefore, weight of a body is zero at the centre of the earth.
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 : Mass of satellite orbiting Earth is A. considered B. irrelevant C. should be infinite D. should be zero
Last Answer : should be infinite
Description : As long as op-amp is not saturated, the potential difference between inverting and non-inverting inputs is A. zero B. infinite C. 1 D. 2
Description : Impedance of ideal op-amp is A. zero B. 1 C. infinite D. 2
Last Answer : infinite
Description : At all the points the uniform fields have A. different strength B. same strength C. zero strength D. infinite strength
Last Answer : same strength
Description : Bit on left hand side has A. lowest value B. zero value C. highest value D. infinite value
Last Answer : highest value
Description : If the resultant force acting on a body of constant mass is zero, the body's acceleration is: w) increasing x) decreasing y) always zero z) negative.
Last Answer : ANSWER: Y -- ALWAYS ZERO
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 : 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 : 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 : When flange contact of wheel leads tread contact. Then it is known as: (a) Zero angularity (B) Negative angularity (c) Positive angularity* (d) none of these
Last Answer : (c) Positive angularity*
Description : If total utility is maximum at a point, then marginal utility is (1) positive (2) zero (3) negative (4) positive but decreasing
Description : If two commodities are complements, then their cross-price elasticity is (1) zero (2) positive (3) negative (4) imaginary number
Description : If we get a straight line with positive slope then its acceleration is A. increasing B. decreasing C. zero D. constant