Description : The triple integral is used to compute volume. State True/False a) True b) False
Last Answer : a) True
Description : Gauss law for electric field uses surface integral. State True/False a) True b) False
Description : The integral form of potential and field relation is given by line integral. State True/False a) True b) False
Description : The Gauss divergence theorem converts a) line to surface integral b) line to volume integral c) surface to line integral d) surface to volume integral
Last Answer : d) surface to volume integral
Description : Using volume integral, which quantity can be calculated? a) area of cube b) area of cuboid c) volume of cube d) distance of vector
Last Answer : c) volume of cube
Description : Compute the Gauss law for D = 10ρ 3 /4 i, in cylindrical coordinates with ρ = 4m, z = 0 and z = 5, hence find charge using volume integral. a) 6100 π b) 6200 π c) 6300 π d) 6400 π View Answe
Last Answer : d) 6400 π
Description : Compute divergence theorem for D = 5r 2 /4 i in spherical coordinates between r = 1 and r = 2 in volume integral. a) 80 π b) 5 π c) 75 π d) 85 π
Last Answer : c) 75 π
Description : Evaluate Gauss law for D = 5r 2 /4 i in spherical coordinates with r = 4m and θ = π/2 as volume integral. a) 600 b) 588.9 c) 577.8 d) 599.7
Last Answer : b) 588.9
Description : The divergence theorem converts a) Line to surface integral b) Surface to volume integral c) Volume to line integral d) Surface to line integral
Last Answer : b) Surface to volume integral
Description : Surface integral is used to compute a) Surface b) Area c) Volume d) density
Last Answer : b) Area
Description : Line integral is used to calculate a) Force b) Area c) Volume d) Length
Last Answer : d) Length
Description : The gradient can be replaced by which of the following? a) Maxwell equation b) Volume integral c) Differential equatio
Last Answer : c) Differential equation
Description : The work-electric field relation is given by a) Volume integral b) Surface integral c) Line integral d) Relation impossible
Last Answer : c) Line integral
Description : Which of the following is not an application of Green’s theorem? a) Solving two dimensional flow integrals b) Area surveying c) Volume of plane figures d) Centroid of plane figures
Last Answer : c) Volume of plane figures
Description : The area of sphere can be computed from the sphere volume. State True/False. a) True b) False
Description : Applications of Green’s theorem are meant to be in a) One dimensional b) Two dimensional c) Three dimensional d) Four dimensional
Last Answer : b) Two dimensional
Description : The surface integral of which parameter is zero? a) E b) D c) B d) H
Last Answer : c) B
Description : The line integral of which parameter is zero for static fields? a) E b) H c) D d) B
Last Answer : a) E
Description : The line integral of the electric field intensity is a) Mmf b) Emf c) Electric potential d) Magnetic potential
Last Answer : b) Emf
Description : Which equation will hold good for a magnetic material? a) Line integral of H is zero b) Surface integral of H is zero c) Line integral of B is zero d) Surface integral of B is zero
Last Answer : d) Surface integral of B is zero
Description : For a solenoidal field, the surface integral of D will be, a) 0 b) 1 c) 2 d) 3
Last Answer : a) 0
Description : In the conversion of line integral of H into surface integral, which theorem is used? a) Green theorem b) Gauss theorem c) Stokes theore d) It cannot be converted
Last Answer : c) Stokes theorem
Description : The line integral of the magnetic field intensity is the a) Current density b) Current c) Magnetic flux density d) Magnetic moment
Last Answer : b) Current
Description : In which of the following forms can Maxwell’s equation not be represented? a) Static b) Differential c) Integral d) Harmonic
Last Answer : a) Static
Description : Poisson equation can be derived from which of the following equations? a) Point form of Gauss law b) Integral form of Gauss law c) Point form of Ampere law d) Integral form of Ampere law
Last Answer : a) Point form of Gauss law
Description : Gauss law cannot be expressed in which of the following forms? a) Differential b) Integral c) Point d) Stokes theorem
Last Answer : d) Stokes theorem
Description : Evaluate the surface integral ∫∫ (3x i + 2y j). dS, where S is the sphere given by x 2 + y 2 + z 2 = 9. a) 120π b) 180π c) 240π d) 300π
Last Answer : b) 180π
Description : Which of the following theorem convert line integral to surface integral? a) Gauss divergence and Stoke’s theorem b) Stoke’s theorem only c) Green’ s theorem only d) Stoke’s and Green’s theorem
Last Answer : d) Stoke’s and Green’s theorem
Description : The Laplacian operator cannot be used in which one the following? a) Two dimensional heat equation b) Two dimensional wave equation c) Poisson equation d) Maxwell equation
Last Answer : d) Maxwell equation
Description : The skin depth is calculated from the amplitude of the wave. State true/false a) True b) False
Description : In P polarisation, the electric field lies in the same plane as the interface. State True/False. a) True b) False
Description : In S polarisation, the electric field lies in the plane perpendicular to that of the interface. State True/False a) True b) False
Description : The Snell law is applicable for perpendicular polarisation and the Brewster law is applicable for parallel polarisation. State True/False. a) True b) False
Description : The angle of incidence is equal to the angle of reflection for perfect reflection. State True/False. a) True b) False
Description : The critical angle is defined as the angle of incidence at which the total internal reflection starts to occur. State True/False. a) True b) False
Description : An elliptically polarised wave transmitted at the Brewster angle will be received as an elliptically polarised wave. State True/False a) True b) False
Last Answer : b) False
Description : A circularly polarised wave transmitted at the Brewster angle will be received as linearly polarised wave. State True/False a) True b) False
Description : The core refractive index should be lesser than the cladding refractive index for a coaxial cable. State True/False a) True b) False
Description : The refractive index of air is unity. State True/False. a) True b) False
Description : The electric and magnetic field components in the electromagnetic wave propagation are in phase. State True/False. a) True b) False
Description : The attenuation in a good dielectric will be non- zero. State True/False. a) True b) False
Description : In free space, the ratio of frequency to the velocity of light gives the phase constant. State True/False. a) True b) False
Description : Harmonic electromagnetic fields refer to fields varying sinusoidally with respect to time. State True/False. a) True b) False
Description : The inductance is proportional to the ratio of flux to current. State True/False. a) True b) False
Description : In air, the tangential component of flux density is continuous at the boundary. State True/False. a) True b) False
Description : The tangential component of the magnetic field intensity is continuous at the boundary of separation of two media. State True/False. a) True b) False
Description : In ferromagnetic materials the susceptibility is infinity. State True/False a) True b) False
Description : The magnetic force impacts the energy of the field. State True/false. a) True b) False
Description : Electromagnetic waves are longitudinal in nature. State True/False. a) True b) False
Description : Inductance is present in semiconductor. State True/False. a) True b) False