Kirchhoff 1st law is is manifestation of
a. law of conservation of mass b. law of conservation of charge
c. law of conservation of energy d. none

1 Answer

Answer :

b. law of conservation of charge

Related questions

Description : An ideal transformer always obeys the law of conservation of........: a. energy b. momentum c. charge d. Flux

Last Answer : b. momentum

Description : Lenz’s law is in accordance with the law of conservation of: a. momentum b. Angular momentum c. charge d. energy

Last Answer : a. momentum

Description : 1st law of thermodynamics is nothing but the law of conservation of (A) Momentum (B) Mass (C) Energy (D) None of these

Last Answer : (C) Energy

Description : The 1st Law of Thermodynamics on what principle?  a. Conservation of Energy  b. Conservation of mass  c. Enthalpy  d. Isometric

Last Answer : Conservation of Energy

Description : Energy stored per unit volume inside the solenoid is called: a. Energy density b. Charge Density c. Mass density d. Volume charge density

Last Answer : energy density is correct

Description : State the need of energy conservation in electrical motor.

Last Answer : Need of energy conservation in Electrical motors: 1. Induction motors are used as electrical drives in industrial, commercial and residential sectors. 2. Considering all industrial applications, 70% of ... system. 8. To adopt advanced technology in design and to use better quality materials.

Description : Describe the following energy conservation methods of electrical motor. i) By motor survey ii) By matching loads with motor rating

Last Answer : Energy conservation methods of electrical motor:  1) By Motor Survey: Large industries have a massive population of LT motors. Load survey of LT motors can be taken-up methodically to ... -speed motors, eddy-current couplings, fluid couplings, and solid-state electronic variable speed drives.

Description : Lenz's law is an example of the law of conservation of one of the following. Is it conservation of: w) mass x) charge y) momentum z) energy

Last Answer : ANSWER: Z -- ENERGY 

Description : Between the branch voltages of a loop the Kirchhoff s voltage law imposes?

Last Answer : Between the branch voltages of a loop the Kirchhoff s voltage law imposes linear constraints.

Description : Which one of the following physical quantities is independent of relativistic speed? a) Mass b) Length c) Time d) Charge

Last Answer : d) Charge

Description : A proton having mass m and charge q is projected into a region having a perpendicular magnetic field. The angle of deviation of proton when it comes out of the region with mv √2 qB ⁄ is a) π/3 b) π/4 c) π/6 d) 2 π/3

Last Answer : b) π/4

Description : Heat cannot be created, nor destroyed, but it can be changed from one form to another. The energy in the universe remains constant.  a. 1st Law of Energy Conservation  b. 2nd Law of Energy Conservation  c. 3rd Law of Energy Conservation  d. None of the above

Last Answer : 1st Law of Energy Conservation

Description : Which one of the following quantities is conserved in pair production? a) Energy b) Charge c) Linear momentum d) All

Last Answer : d) All

Description : When the potential difference of 4 volt is applied across resistance, 10J energy is converted. Find the charge flows. a. 0.20 C b. 2.5C c. 5C d. 10C

Last Answer : b. 2.5C

Description : The force per unit charge is called: (a) Electric field (b) Electric field intensity (c) Electric potential energy (d) Electric potential

Last Answer : b) Electric field intensity

Description : Which conservation principle is applicable in the case of the motion of a rocket? (1) Conservation of mass (2) Conservation of charge (3) Conservation of momentum (4) Conservation of energy

Last Answer : (3) Conservation of momentum Explanation: The motion of a rocket is an application of Newton's third law of motion and law of conservation of linear momentum. The operation of a rocket illustrates the ... rocket is fired, it forces a jet of hot gases with a high velocity through the nozzle.

Description : Which conservation principle is applicable in the case of the motion of a rocket? (1) Conservation of mass (2) Conservation of charge (3) Conservation of momentum (4) Conservation of energy

Last Answer : Conservation of momentum

Description : Kirchhoff's 2nd law is consequence of law of conservation of A. energy B. charge C. momentum D. power

Last Answer : energy

Description : The first law of thermodynamics is concerned with the conservation of w) energy x) momentum y) charge z) matter

Last Answer : ANSWER: W -- ENERGY

Description : If energy of incident photon is greater than the rest mass energy of electron positron pair, the surplus energy is shared by the pair as, a) Potential energy b) Thermal energy c) Electronic energy d) Kinetic energy

Last Answer : d) Kinetic energy

Description : The relativistic energy ‘E’ is equivalent to relativistic mass given by a) Ec2 b) 2 c E c) c E d) E c

Last Answer : b) 2 c E

Description : The emitter of a transistor is doped the heaviest because it: (a) Acts as a supplier of charge carriers (b) Dissipates maximum power c) has a large resistance (d) has a small resistance

Last Answer : (a) Acts as a supplier of charge carriers

Description : Depletion region carries _________ (a) +ve charge (b) –ve charge (c) no charge (d) all of above

Last Answer : (c) no charge

Description : N-type region has majority charge carriers as (a) Holes (b) protons (c) neutrons (d) electrons

Last Answer : (d) electrons

Description : The fractional change in resistance per kelvin is known as, a. temperature coefficient of resistance b. coefficient of Voltage of charge c. thermal expansion d. all of above

Last Answer : a. temperature coefficient of resistance

Description : If 1 ampere current flows through 2m long conductor the charge flow through it in 1 hour will be a. 3600C b. 7200C c. 1C d. 2C

Last Answer : a. 3600C

Description : The electric intensity at a distance of 1m from the point charge is 1μC is: (a) 9 × 109 N/C (b) 9 × 106 N/C (c) 9 × 103 N/C (d) 9 N/C

Last Answer : c) 9 × 103 N/C

Description : A charge of 2 coulomb is in a field of intensity 2 N/C. The force on charge is: (a) 4 π N (b) 4 N (c) 0 N (d) 1 N

Last Answer : b) 4 N

Description : The electric field exist around: (a) Charges (b) On the left side (c) At the –ve charge (d) At the +ve charge

Last Answer : (a) Charges

Description : The space around the charge within which other charges are influenced by it is called: (a) Electric field (b) Magnetic field (c) Electric flux (d) Electric intensity

Last Answer : a) Electric field

Description : An inkjet printer uses in its operation: (a) Positrons (b) Neutrons (c) An electric charge (d) Photons

Last Answer : (c) An electric charge

Description : The SI unit of charge is: (a) Meter (b) Ampere (c) Coulomb (d) Volt

Last Answer : (c) Coulomb

Description : When current of one ampere is flowing across any cross-section of wire in one second, then the quantity of charge is said to be: (a) One coulomb (b) Three coulomb (c) One micro-coulomb (d) None of above

Last Answer : (a) One coulomb

Description : The minimum charge on any electron be less than: (a) 1.6×10−19C (b) 3.2×10−19C (c) 1.8×10−19C (d) 9.1×10−19C

Last Answer : (a) 1.6×10−19C

Description : If the distance between the two charge bodies is halved, the force between them becomes: (a) Half (b) Four time (c) One fourth (d) Doubled

Last Answer : (c) One fourth

Description : A substance contains: (a) Only positive charge (b) Only negative charge (c) Both +ve and −ve charge (d) None of above

Last Answer : (c) Both +ve and −ve charge

Description : A charge of 10μC and 14.4 μC are 12 cm apart, the force between them is: (a) 9 × 105 N (b) 9 × 107 N (c) 90 N (d) 108 × 107 N

Last Answer : (c) 90 N

Description : The number of electrons in one coulomb charge is equal to: (a) 6.2 × 1018 electrons (b) Zero electrons (c) 1.6 × 10−22 electrons (d) 6.2 × 1021 electrons

Last Answer : (a) 6.2 × 1018 electrons

Description : The SI unit of charge is: (a) Coulomb (b) Calorie (c) Ampere (d) Joule

Last Answer : a) Coulomb

Description : How are the law of conservation of energy and the law of conservation of mass similar?

Last Answer : In both cases, something is conserved - it doesn't change overtime.Also, mass and energy are equivalent. If something has energy,it has mass, and vice versa.

Description : Which of the following laws validates the statement that matter can neither be created nor destroyed? (1) Law of conservation of energy (2) Le Chatelier's Principle (3) Law of conservation of mass (4) Law of osmosis

Last Answer : (3) Law of conservation of mass Explanation: The law of conservation of mass, also known as the principle of mass/matter conservation, states that the mass of an isolated system (closed to all ... out, its quantity cannot otherwise change over time (hence, its quantity is "conserved" over time).

Description : State the law of conservation of mass and energy.

Last Answer : Mass and energy are interchangeable. When mass is lost there is a substantial gain in energy and when energy is lost there is a increase in mass. 

Description : The Navier-Stokes equation deals with the law of conservation of (A) Mass (B) Energy (C) Both (A) & (B) (D) Momentum

Last Answer : (D) Momentum

Description : Euler's equation of motion is a statement expressing (A) Conservation of mass (B) Conservation of energy (C) Newton's first law of motion (D) Newton's second law of motion

Last Answer : (A) Conservation of mass

Description : The first law of thermodynamics is a restatement of the law of conservation of (A) Mass (B) Energy (C) Momentum (D) None of these

Last Answer : (B) Energy

Description : Lenz's law results from the law of conservation of (A) Mass (B) Momentum (C) Energy (D) None of these

Last Answer : (C) Energy

Description : Bernoulli equation deals with the law of conservation of (A) Mass (B) Momentum (C) Energy (D) Work

Last Answer : Answer: Option C

Description : The first law of thermodynamics is based on which of the following principles?  a. Conservation of mass  b. Conservation of energy  c. Action and reaction  d. The entropy-temperature relationship

Last Answer : Conservation of energy

Description : It states that mass is a commodity that can neither be heated nor destroyed with the exception of nuclear processes where the conversion of mass into energy is a fundamental principle  a. Law of ... Conservation of Energy  c. Law of Conservation of Power  d. Law of Conservation of Heat

Last Answer : Law of Conservation of Mass

Description : The first law of thermodynamics is based on which of the following principles?  a. conservation of mass  b. the enthalpy-entropy relationship  c. action – reaction  d. conservation of energy

Last Answer : conservation of energy