zero
Description : When an electron is moving horizontally between oppositely charged plates, it will move in the A. straight line B. fall directly downwards C. move towards positive plates D. curved path
Last Answer : curved path
Description : Which of the following phrases completes the following statement: The strength of the electric field between two oppositely charged parallel plates is: w) a maximum midway between the plates x) a maximum ... plate y) constant between the plates except near the edges z) zero midway between the plates
Last Answer : ANSWER: Y -- CONSTANT BETWEEN THE PLATES EXCEPT NEAR THE EDGES
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 : 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 : 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 : 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 : 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 : 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
Last Answer : zero
Description : What is a bond formed by the electrical attraction between two oppositely charged ions is a(n) .?
Last Answer : This is an ionic bond.
Description : A capacitor and a coil are connected in series. The capacitor is charged and allowed to discharge through the coil. The current that will then flow through the capacitor-coil combination will do ... but diminish steadily to zero z) oscillate at high frequency at first but then at slower frequency
Last Answer : ANSWER: Y -- OSCILLATE BUT DIMINISH STEADILY TO ZERO
Description : A 10 farad capacitor is used in a circuit. The voltage difference between the plates of the capacitor is 20 volts. What is the magnitude of the charge on each of the capacitor's plates?
Last Answer : ANSWER: 200 COULOMBS
Description : Three capacitors with different capacitances are connected in series. Which of the following statements is TRUE? w) All three of the capacitors have the same potential difference between their plates. x ... y) The capacitance of the system depends on the voltage applied across the three capacitors.
Last Answer : ANSWER: X -- THE MAGNITUDE OF THE CHARGE IS THE SAME ON ALL OF THE CAPACITOR PLATES
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 : The true statement about solutions of amino acids at physiological pH is (A) All amino acids contain both positive and negative charges (B) All amino acids contain positively charged side chains ... amino acids contain only positive charge (D) All amino acids contain negatively charged side chains
Last Answer : Answer : A
Description : The true statement about solutions of amino acids at physiological pH is (A) All amino acids contain both positive and negative charges (B) All amino acids contain positively charged side chains ... amino acids contain only positive Charge (D) All amino acids contain negatively charged side chains
Last Answer : (A) All amino acids contain both positive and negative charges
Description : If charge is placed at infinity, it's potential is A. zero B. infinite C. 1 D. -1
Description : Capacitor is fully charged if potential difference is equal toA. e.m.f B. current C. resistance D. power
Last Answer : e.m.f
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 : A good conductor while carrying current is - (1) alternately charged positive and negative (2) negatively charged (3) positively charged (4) electrically neutral
Last Answer : (2) negatively charged Explanation: Electrons carry current in a good conductor of electricity and they are negatively charged. This makes a good electrical conductor negatively charged.
Description : A good conductor while carrying current is (1) alternately charged positive and negative (2) negatively charged (3) positively charged (4) electrically neutral
Last Answer : negatively charged
Description : Pick out the correct statement. (A) Higher hold up of the solid in the rotary dryer results in better exposure of the solids to the gas (B) The 'Hatta number' is ... reflux in case of distillation operation requires infinite number of plates for a binary system separation
Last Answer : (C) For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is linear in the case of steady state equimolal counter-diffusion
Description : If the gradient of a graph is negative, then the acceleration is A. positive B. negative C. zero D. 1
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 : If total utility is maximum at a point, then marginal utility is (1) positive (2) zero (3) negative (4) positive but decreasing
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 : 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 : Electric field strength on a dust particle having charge equal to 8 × 10- 19 when plates are separated by distance of 2 cm and have a potential difference of 5 kV is A. 2.0 × 10-13 N B. 3 N C. 5 N D. 20 N
Last Answer : 2.0 × 10-13 N
Description : capacitance and charge on plates are A. inversely related B. directly related C. not related at all D. always equal
Last Answer : directly related
Description : insulator which is placed between 2 plates of capacitor isA. electric B. dielectric C. inductor D. resistor
Last Answer : dielectric
Description : Five volts are applied across the plates of a parallel plate capacitor. The distance of separation of the plates is .02 meters. What is the magnitude of the electric field inside the capacitor?
Last Answer : ANSWER: 250 VOLTS PER METER or 250 NEWTONS PER COULOMB
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 : 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 : Energy stored in a 2000 mF capacitor charged to a potential difference of 10 V is A. 0.12 J B. 1.3 J C. 0.10 J D. 3 J
Last Answer : 0.10 J
Description : Which of the processes listed occurs during the charging of a lead-acid storage battery? A. Negative plates change to lead peroxide. B. Positive plates change to lead peroxide. C. Both plates change to lead peroxide. D. Both plates change to lead sulfate.
Last Answer : Answer: B
Description : Local action in a nickel-cadmium battery is offset by _____________. A. separating the positive and negative plates with plastic spacers B. separating the positive and negative plates with resin impregnated spacers C. adding a small amount of lithium hydroxide to the electrolyte D. trickle charging
Last Answer : Answer: D
Description : Why negative plates are one more than positive plates?
Last Answer : Negative plates are one more than positive plates so as to get negative plates on both the sides of positive plates. This is to prevent the buckling action of the lead on positive plate in ... of positive plates will become active and the efficiency of the positive plate and the cell will increase.
Description : When there is an equal amount of positive and negative charges on an object what is the net charge of the object?
Last Answer : Feel Free to Answer
Description : The isoelectric point of a protein is (a) the pH at which the protein molecule has no charges on its surface. (b) the pH at which a protein in solution has an equal number of positive and negative charges. (c) the electric charge under isothermal conditions. (b) None of these
Last Answer : the pH at which a protein in solution has an equal number of positive and negative charges
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 : A dielectric slab of thickness `d` is inserted in a parallel plate capacitor whose negative plate is at `x = 0` and positive plate is at `x = 3d`. The
Last Answer : A dielectric slab of thickness `d` is inserted in a parallel plate capacitor whose negative plate ... at fist, then decreases and again increase.