Description : The Gaussian surface for a point charge will be a) Cube b) Cylinder c) Sphere d) Cuboid
Last Answer : c) Sphere
Description : The Gaussian surface for a line charge will be a) Sphere b) Cylinder c) Cube d) Cuboid
Last Answer : b) Cylinder
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 : 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 : The Poynting vector is the power component that is calculated by the a) Product of E and H b) Ratio of E and H c) Dot product of E and H d) Cross product of E and H
Last Answer : d) Cross product of E and H
Description : he work done of vectors force F and distance d, separated by angle θ can be calculated using, a) Cross product b) Dot product c) Addition of two vectors d) Cannot be calculated
Last Answer : b) Dot product
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 : 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 volume integral is three dimensional. State True/False a) True b) False
Last Answer : a) True
Description : The triple integral is used to compute volume. State True/False a) True b) False
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 : 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 : The distance vector can be used to compute which of the following? a) Dot product b) Cross product c) Unit normal vector d) Area
Last Answer : c) Unit normal vector
Description : Find the value of divergence theorem for A = xy 2 i + y 3 j + y 2 z k for a cuboid given by 0
Last Answer : c) 5/3
Description : The magnetic vector potential is a scalar quantity. a) True b) False
Last Answer : b) False
Description : The divergence of distance vector is a) 0 b) 3 c) 2 d) 1
Last Answer : b) 3
Description : The distance vector is obtained in a) Cartesian coordinate system b) Spherical coordinate system c) Circular coordinate system d) Space coordinate system
Last Answer : d) Space coordinate system
Description : Calculate the polarisation vector of the material which has 100 dipoles per unit volume in a volume of 2 units. a) 200 b) 50 c) 400 d) 0.02
Last Answer : a) 200
Description : Using Maxwell equation which of the following cannot be calculated directly? a) B b) D c) A d) H
Last Answer : c) A
Description : The Stoke’s theorem can be used to find which of the following? a) Area enclosed by a function in the given region b) Volume enclosed by a function in the given region c) Linear distance d) Curl of the function
Last Answer : a) Area enclosed by a function in the given region
Description : A cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height. 2. Two faces measuring 4 cm x 1 cm are coloured in black. 3. Two faces measuring 6 cm x 1 cm are coloured in red. 4. Two faces ... and black colours on at least one side of the cube will be formed? (a)16 (b)12 (c)10 (d)4
Last Answer : Answer key : (d)
Description : In the following question, select the odd word from the given alternatives. Options: 1) Cuboid 2) Cone 3) Triangle 4) Cube
Last Answer : Correct Answer: Triangle
Description : In the mid-section formula (A) The mean depth is the average of depths of two consecutive sections (B) The area of mid-sections is calculated by using mean depth (C) The volume of the ... multiplying the mid-section area by the distance between the two original sections (D) All of the above
Last Answer : (D) All of the above
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 : 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 vector product of two vectors is given by area of the parallelogram. State True/False. a) True b) False
Description : The skin depth is calculated from the amplitude of the wave. State true/false a) True b) False
Description : The benefit of Maxwell equation is that a) Any parameter can be calculated b) Antenna can be designed c) Polarisation of the wave can be calculated d) Transmission line constants can be found
Last Answer : a) Any parameter can be calculated
Description : By method of images, the problem can be easily calculated by replacing the boundary with which polygon? a) Rectangle b) Trapezoid c) Square d) Triangle
Last Answer : d) Triangle
Description : If the electric potential is given, which of the following cannot be calculated? a) Electrostatic energy b) Electric field intensity c) Electric flux density d) Permittivity
Last Answer : a) Electrostatic energy
Description : Which one is a vector quantity out of the followings? A. Energy B. Volume C. Area D. Force
Last Answer : Which one is a vector quantity out of the followings? Force
Description : Compute the charge enclosed by a cube of 2m each edge centered at the origin and with the edges parallel to the axes. Given D = 10y 3 /3 j. a) 20 b) 70/3 c) 80/3 d) 30
Last Answer : c) 80/3
Description : The vectors of the electromagnetic wave propagation can be expressed in a) Dot product b) Cross product c) Unit vector d) Perpendicular vector
Last Answer : b) Cross product
Description : The gradient of the magnetic vector potential can be expressed as a) –με dV/dt b) +με dE/dt c) –με dA/dt d) +με dB/dt
Last Answer : a) –με dV/dt
Description : The charge density of a field with a position vector as electric flux density is given by a) 0 b) 1 c) 2 d) 3
Last Answer : d) 3