Description : Which of the following is a vector quantity ? (a) Relative permeability (b) Magnetic field intensity (c) Flux density (d) Magnetic potential
Last Answer : (b) Magnetic field intensity
Description : Quantities that describe both magnitude & direction a. Physical Quantity b. Scalar Quantity c. Vector Quantity d. None of the above
Last Answer : Vector Quantity
Description : is upthrust a scalar or vector quantity?
Last Answer : You've already told us its direction. As soon asyou tell us its magnitude, we'll have a vector.
Description : Why vector quantity cannot be subtracted and added like scalar?
Last Answer : Mainly because they aren't scalar quantities.A vector in the plane has two components, an x-component and ay-component. If you have the x and y components for each vector,you can add ... istheir lengths.Similarly, a vector in space has three components; you can addeach of the components separately.
Description : Stress can be defined as ______ quantity. (1) Scalar (2) Vector (3) Phasor (4) Tensor
Last Answer : (4) Tensor Explanation: Stress is defined as Resisting force per unit area of an element, on which load is applied. Stress is always perpendicular to a cross-section in the element. ... vector addition). It is a tensor quantity because it describes things happening in two directions simultaneously.
Description : Work done upon a body ______. (1) only a vector quantity (2) only a scalar quantity (3) both vector and scalar (4) neither vector nor scalar
Last Answer : (2) only a scalar quantity
Description : Displacement is a A. scalar quantity B. vector quantity C. base quantity D. derived quantity
Last Answer : vector quantity
Description : What is vector quantity and what is scalar quantity?
Last Answer : Vector quantity A quantity, which has both the direction and magnitude is said to be a vector quantity. Examples are force, emf, current etc. Scalar quantity A scalar quantity is that, which has only magnitude but no direction. Examples are temperature, mass, volume etc.
Description : The magnetic vector potential is a scalar quantity. a) True b) False
Last Answer : b) False
Description : Which is true: a. Energy is a scalar quantity b. Energy is a vector quantity c. Energy is vector & scalar d. None of the above
Last Answer : Energy is a scalar quantity
Description : As defined in physics, work is: w) a scalar quantity x) always a positive quantity y) a vector quantity z) always zero
Last Answer : ANSWER: W -- A SCALAR QUANTITY
Description : Stress can be defined as _____ quantity. (1) Scalar (2) Vector (3) Phasor (4) Tensor
Last Answer : Tensor
Description : Define Scalar and Vector quantity.
Last Answer : Scalar Quantity: A physical quantity having only magnitude but no direction is called as scalar quantity Vector Quantity: A physical quantity having both magnitude as well as direction is called as vector quantity.
Description : State with reasons, whether the following algebraic operations with scalar and vector physical quantities are meaningful.
Last Answer : State with reasons, whether the following algebraic operations with scalar and vector physical quantities are ... scalars, v. Adding any two vectors.
Description : The unit of electric intensity is
Last Answer : Volt/ metre
Description : A sensor which changes light intensity into electric voltage. (a) LDR (b) thermistor (c) photodiode (d) photovoltaic
Last Answer : (a) LDR
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 : 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 : 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 : The number of electric field lines passing through a certain element of area is called: (a) Electric lines of force (b) Electric intensity (c) Electric flux (d) None of these
Last Answer : (c) Electric flux
Description : Complete the table. Physical Quantity - Scalar
Last Answer : Complete the table. Physical Quantity Multiplied with Scalar Vector Scalar (a) (b) Vector (c) (d)
Description : The ratio of intensity of magnetisation to the magnetisation force is known as (a) flux density (b) susceptibility (c) relative permeability (d) none of the above
Last Answer : (b) susceptibility
Description : The minimum energy required to eject an electron from a metal surface is called a) Intensity b) Threshold frequency c) Work function d) Photo energy
Last Answer : c) Work function
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 : In homogeneous coordinates value of ‘h’ is consider as 1 & it is called….. a.Magnitude Vector b.Unit Vector c.Non-Zero Vector d.Non-Zero Scalar Factor
Last Answer : d.Non-Zero Scalar Factor
Last Answer : scalar Rashih That All Physical Rashike Just The value By Absolutely Revealed To do Go , direction Of instruction Need Not at all Them Scalar The amount Says. Length , mass , speed , work , ... amount Says. Move , velocity , acceleration , force , electricity Intensity Etc. Vector The sign Example
Description : The expression 1/√2 (i + j) is a (A) unit vector (B) null vector (C) vector of magnitude (D) scalar
Last Answer : The expression 1/√2 (i + j) is a (A) unit vector (B) null vector (C) vector of magnitude √2 (D) scalar
Description : What is the difference between a scalar and a vector?
Last Answer : What is the difference between a scalar and a vector ?
Description : The curl of a curl of a vector gives a a) Scalar b) Vector c) Zero value d) Non zero value
Last Answer : b) Vector
Description : The divergence of a vector is a scalar. State True/False. a) True b) False
Last Answer : a) True
Description : Which of the following is not true? a) A . (B . C) = scalar value b) A . (B x C) = scalar value c) A x (B . C) = scalar value d) A x (B x C) = vector value
Last Answer : c) A x (B . C) = scalar value
Description : The dot product of two vectors is a scalar. The cross product of two vectors is a vector. State True/False. a) True b) Fals
Description : What the difference between vector and scalar quantities is?
Last Answer : A vector has both strength and direction, a scalar quantity can be described using only 1 quantity, magnitude. Example of vector quantities are velocity, acceleration etc. Examples of scalar quantities are time, energy and volume since they only represent magnitude and no direction.
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 : Which of the following is not a vector quantity? (1) Acceleration (2) Electric current (3) Force (4) Velocity
Last Answer : (2) Electric current Explanation: For a physical quantity to be termed a vector quantity, having magnitude and direction is not enough.
Description : Which of the following is scalar quantity a.Area of triangle b.Displacement of a particle c.Acceleration of car d.Force of friction e.Velocity a gear
Last Answer : a. Area of triangle
Description : Pick out the scalar quantity (a) Force (b) Pressure (c) Velocity (d) Acceleration
Last Answer : Ans:(b)
Description : Choose the only scalar quantity from the following: (a) Energy (b) Torque (c) Momentum (d) Force
Last Answer : Ans:(a)
Description : Which of the following is a scalar quantity? (1) Velocity (2) Force (3) Angular momentum (4) Electrostatic potential
Last Answer : (3) Angular momentum Explanation: The electrostatic potential at any point in an electric field is defined as the work done in bringing a unit positive charge from infinity to that point against the electric force of the field.
Description : Which of the following is not a scalar quantity? (A) Time (B) Mass (C) Volume (D) Acceleration
Last Answer : (D) Acceleration
Description : Which of the following is a scalar quantity ? (1) Velocity (2) Force (3) Angular momentum (4) Electrostatic potential
Last Answer : Electrostatic potential
Description : Which of the following is a scalar quantity? a) Electric displacement density b) Potential in electric field c) Electric field strength d) None of the above
Last Answer : b) Potential in electric field
Description : Which quantity is solenoidal in the electromagnetic theory? a) Electric field intensity b) Electric flux density c) Magnetic field intensit d) Magnetic flux density
Last Answer : d) Magnetic flux density
Description : Gauss law cannot be used to find which of the following quantity? a) Electric field intensity b) Electric flux density c) Charge d) Permittivity
Last Answer : d) Permittivity
Description : The product of uncertainties of two physical observables must be approximately equal to a)Coulomb’s constant K b) Rydberg’s constant R c)Planck’s constant d)All of the above
Last Answer : c)Planck’s constant
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 : Devices which convert various physical quantities into electrical voltage are known as (a) Control system (b) sensors (c) level sensors (d) LDR
Last Answer : (b) sensors
Description : The left hand rule correlates to (a) current, induced e.m.f. and direction of force on a conductor (b) magnetic field, electric field and direction of force on a conductor (c) self induction, ... and direction of force on a conductor (d) current, magnetic field and direction of force on a conductor
Last Answer : (d) current, magnetic field and direction of force on a conductor
Description : What is an electric tachometer?*
Last Answer : A generator producing voltage proportional to speed.
Description : The reverse process of photo-electric effect is called: a) Annihilation of matter b) Compton effect c) Pair production d) X-rays
Last Answer : d) X-rays