State with reasons, whether the following algebraic operations with scalar and vector physical quantities are meaningful.

State with reasons, whether the following algebraic operations with scalar and vector physical quantities are meaningful.
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State with reasons, whether the following algebraic operations with scalar and vector physical quantities are ... scalars, v. Adding any two vectors.
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Quantities that describe both magnitude & direction  a. Physical Quantity  b. Scalar Quantity  c. Vector Quantity  d. None of the above

Description : Quantities that describe both magnitude & direction  a. Physical Quantity  b. Scalar Quantity  c. Vector Quantity  d. None of the above

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What the difference between vector and scalar quantities is?

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.

The electric intensity is a: (a) Scalar quantity (b) Vector quantity (c) Physical quantity (d) None of above

Description : The electric intensity is a: (a) Scalar quantity (b) Vector quantity (c) Physical quantity (d) None of above

Last Answer : (b) Vector quantity

The divergence of a vector is a scalar. State True/False. a) True b) False

Description : The divergence of a vector is a scalar. State True/False. a) True b) False

Last Answer : a) True

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 : 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

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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

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

is upthrust a scalar or 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.

scalar, Vector The sign Example Day.

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

The expression 1/√2 (i + j) is a  (A) unit vector  (B) null vector  (C) vector of magnitude  (D) scalar

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

What is the difference between a scalar and a vector?

Description : What is the difference between a scalar and a vector?

Last Answer : What is the difference between a scalar and a vector ?

Why vector quantity cannot be subtracted and added like scalar?

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.

Stress can be defined as ______ quantity. (1) Scalar (2) Vector (3) Phasor (4) Tensor

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.

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

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

Displacement is a A. scalar quantity B. vector quantity C. base quantity D. derived quantity

Description : Displacement is a A. scalar quantity B. vector quantity C. base quantity D. derived quantity

Last Answer : vector quantity

What is vector quantity and what is scalar 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.

The magnetic vector potential is a scalar quantity. a) True b) False

Description : The magnetic vector potential is a scalar quantity. a) True b) False

Last Answer : b) False

The curl of a curl of a vector gives a a) Scalar b) Vector c) Zero value d) Non zero value

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

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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

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

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

As defined in physics, work is: w) a scalar quantity x) always a positive quantity y) a vector quantity z) always zero

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

Stress can be defined as _____ quantity. (1) Scalar (2) Vector (3) Phasor (4) Tensor

Description : Stress can be defined as _____ quantity. (1) Scalar (2) Vector (3) Phasor (4) Tensor

Last Answer : Tensor

Define Scalar and Vector quantity.

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. 

Correct example of vector quantities could be A. Distance and Speed B. Displacement and Velocity C. Distance and Displacement D. Speed and Velocity

Description : Correct example of vector quantities could be A. Distance and Speed B. Displacement and Velocity C. Distance and Displacement D. Speed and Velocity

Last Answer : Displacement and Velocity

A differential relay measures the vector difference between (a) two currents (b) two voltages (c) two or more similar electrical quantities (d) none of the above

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Last Answer : (c) two or more similar electrical quantities

Which of the following pair are vector quantities? w) time and space x) force and momentum y) energy and time z) momentum and mass e) mass

Description : Which of the following pair are vector quantities? w) time and space x) force and momentum y) energy and time z) momentum and mass e) mass

Last Answer : ANSWER: X -- FORCE and MOMENTUM 

Which of the following statements concerning analog and digital devices are correct? A. The variables in digital systems are fixed quantities, and the variables in analog systems are continuous quantities. B. There are no basic differences between the two systems. C. Analog devices are superior in accuracy compared to digital devices. D. Operations in a digital device are performed simultaneously.

Description : Which of the following statements concerning analog and digital devices are correct? A. The variables in digital systems are fixed quantities, and the variables in analog systems are continuous ... accuracy compared to digital devices. D. Operations in a digital device are performed simultaneously.

Last Answer : Answer: A

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Description : Complete the table. Physical Quantity - Scalar

Last Answer : Complete the table. Physical Quantity Multiplied with Scalar Vector Scalar (a) (b) Vector (c) (d)

Are there any reasons why the US government (and/or departments thereof) couldn't retask the government supercomputers to mint huge quantities of Bitcoin?

Description : Are there any reasons why the US government (and/or departments thereof) couldn't retask the government supercomputers to mint huge quantities of Bitcoin?

Last Answer : It isn’t cost effective, because the resources to “mine” additional coins is too much. And, it is all part of a ponzi scheme anyway.

Which of the following physical quantities changes or tends to change the state of rest or of uniform motion of a body in a straight line? (1) Momentum (2) Mass (3) Force (4) Inertia

Description : Which of the following physical quantities changes or tends to change the state of rest or of uniform motion of a body in a straight line? (1) Momentum (2) Mass (3) Force (4) Inertia

Last Answer : (3) Force Explanation: Force is an agent which changes or tends to change the state of rest or of uniform motion of a body.

Which co-ordinates allow common vector operations such as translation, rotation,scaling and perspective projection to be represented as a matrix by which the vector is multiplied? a.vector co-ordinates b.3D co-ordinates c.affine co-ordinates d.homogenous co-ordinates

Description : Which co-ordinates allow common vector operations such as translation, rotation,scaling and perspective projection to be represented as a matrix by which the vector is multiplied? a.vector co-ordinates b.3D co-ordinates c.affine co-ordinates d.homogenous co-ordinates

Last Answer : d.homogenous co-ordinates

Find whether the vector is solenoidal, E = yz i + xz j + xy k a) Yes, solenoidal b) No, non-solenoidal c) Solenoidal with negative divergence d) Variable divergence

Description : Find whether the vector is solenoidal, E = yz i + xz j + xy k a) Yes, solenoidal b) No, non-solenoidal c) Solenoidal with negative divergence d) Variable divergence

Last Answer : a) Yes, solenoidal

Which physical quantities have the same dimensions? -General Knowledge

Description : Which physical quantities have the same dimensions? -General Knowledge

Last Answer : The answer is 'Momentumand impulse'

Which physical quantities have the same dimensions? -General Knowledge

Description : Which physical quantities have the same dimensions? -General Knowledge

Last Answer : answer:

Which physical quantities have the same dimensions? -General Knowledge

Description : Which physical quantities have the same dimensions? -General Knowledge

Last Answer : answer:

What are the physical quantities measured with voltmeter and ammeter ?

Description : What are the physical quantities measured with voltmeter and ammeter ?

Last Answer : : The voltage difference between two points of a circuit is measured with a voltmeter. And the flow rate of an electric circuit is measured with an ammeter.

It is possible to add two vectors representing physical quantities having different dimensions.

Description : It is possible to add two vectors representing physical quantities having different dimensions.

Last Answer : State true or false. If false correct the statement and rewrite: It is ... vectors representing physical quantities having different dimensions.

Let x = [a^2b^2/c] be the physical quantity. If the percentage error in the measurement of physical quantities a, b and c is 2, 3 and 4

Description : Let x = [a^2b^2/c] be the physical quantity. If the percentage error in the measurement of physical quantities a, b and c is 2, 3 and 4

Last Answer : Let x = \([\frac{a^2b^2}{c}]\) be the physical quantity. If the percentage error in the measurement of physical ... 7% (B) 14% (C) 21% (D) 28%

In an experiment, the percentage of error occurred in the measurement of physical quantities A, B, C and D are 1%, 2%, 3% and 4% respectively.

Description : In an experiment, the percentage of error occurred in the measurement of physical quantities A, B, C and D are 1%, 2%, 3% and 4% respectively.

Last Answer : In an experiment, the percentage of error occurred in the measurement of physical quantities A, B, C and D are 1%, 2%, ... % (C) (3/13) % (D) 16 %

If two quantities have same dimensions, do they always represent the same physical content?

Description : If two quantities have same dimensions, do they always represent the same physical content?

Last Answer : If two quantities have same dimensions, do they always represent the same physical content?

Define dimensions and dimensional formula of physical quantities. Give few examples of dimensional formula.

Description : Define dimensions and dimensional formula of physical quantities. Give few examples of dimensional formula.

Last Answer : Define dimensions and dimensional formula of physical quantities. Give few examples of dimensional formula.

Which of the following class of computers can process physical quantities such as speed? A) Analog Computers B) Digital Computers C) Hybrid Computers D) None of above

Description : Which of the following class of computers can process physical quantities such as speed? A) Analog Computers B) Digital Computers C) Hybrid Computers D) None of above

Last Answer : Answer : A

Which of the following physical quantities has no dimension? (1) Force (2) Momentum (3) Impulse (4) Angle

Description : Which of the following physical quantities has no dimension? (1) Force (2) Momentum (3) Impulse (4) Angle

Last Answer : (4) Angle Explanation: Quantities having units, but no dimensions: Plane angle, angular displacement, solid angle. These physical quantities possess units but they does not possess dimensional formulas.

Which of the following pairs of physical quantities have the same dimensions? (1) Force and Power (2) Work and Power (3) Work and Energy (4) Momentum and Power

Description : Which of the following pairs of physical quantities have the same dimensions? (1) Force and Power (2) Work and Power (3) Work and Energy (4) Momentum and Power

Last Answer : (3) Work and Energy Explanation: The term energy is used to describe the capacity of a system to do work on another system. Energy of all types (Surface Tension, Kinetic, Potential etc.) have the same dimension and unit as that of Work.

Physical quantities are divided into?

Description : Physical quantities are divided into?

Last Answer : Scalar quantity & Vector quantity

Which physical quantities do not have same dimensions?

Description : Which physical quantities do not have same dimensions?

Last Answer : Force and Pressure

Which physical quantities have the same dimensions?

Description : Which physical quantities have the same dimensions?

Last Answer : Momentum and impulse

Which physical quantities are measured by the following units ?

Description : Which physical quantities are measured by the following units ?

Last Answer : a. Rutherford : Atomic Spectrum b. Torr: Atmospheric pressure c. Fermi : metric unit of length for measuring nuclear distance d. Sved berg unit: sedimentation rate e. Diopter: refractive power of a ... Henry: inductance h. Maxwell: magnetic flux i. Becquerel: radioactivity j. Kilo watt hour: Energy

Which physical quantities are measured by the following units :

Description : Which physical quantities are measured by the following units :

Last Answer : a) Pascal - Sound Pressure b) Torr - Pressure c) Curie - Intensity of radioactivity d) Angstrom - Unit of length e) Light year - The distance light travels in a year f) Dioptre - Lens refractive ... - Unit of angular measure i) Candela - Unit of luminous intensity j) Mole - unit of molecular weight

By buying in large quantities and delivering to customers in smaller lots, a wholesaler may perform all of the following physical distributi9on activities except 1. inventory planning 2. transportation 3. materials handling 4. unit pricing 5. communication

Description : By buying in large quantities and delivering to customers in smaller lots, a wholesaler may perform all of the following physical distributi9on activities except 1. inventory planning 2. transportation 3. materials handling 4. unit pricing 5. communication

Last Answer : unit pricing

Buckingham-π theorem states that in any physical problem includingn' quantities having 'm' dimensions, the quantities can be arranged into __________ independent dimensionless parameters. (A) m (B) n (C) n-m (D) n/m

Description : Buckingham-π theorem states that in any physical problem includingn' quantities having 'm' dimensions, the quantities can be arranged into __________ independent dimensionless parameters. (A) m (B) n (C) n-m (D) n/m

Last Answer : (C) n-m