All Questions

Vector calculus

Follow
Showing 1 - 8 out of 8 Questions
26 Views

what is vector , what is its types

Ayush 14th Sep, 2021

Hello candidate,

A vector refers to a physical quantity which has the value of both magnitude as well as direction which means that it can provide that information regarding both the magnitude as well as the point at which that specific quantity is heading towards. Here are the example of some specific vectors- displacement, velocity, acceleration, work, power, electromagnetic force, momentum, force, etc. are some of them.

Hope you found it helpful. If you have any further queries regarding any educational related doubts, feel free to post it here!!


32 Views

how to prepare for mains exam for this year

Anurag Khanna 18th Feb, 2021

Hello Aspirant,

As your profile shows that you are an engineering aspirant so you might be interested in JEE-Main so from now very few time is left for JEE-Main 2021 so just to give boost to your JEE-Preparation and bind it up I am enlisting down some preparation tips which would help you in your final preparation :-

For more detailed preparation tips for JEE-Main 2021 kindly check out the link given below :-

https://engineering.careers360.com/articles/jee-main-preparation-tips

I hope this information helps you.

Good Luck!!

171 Views

define unit vector and with one suitable examples

Beda Nand Chaudhary 19th Jan, 2021

Any vector (directional entity) whose magnitude is 1(unit) is called unit vector.

Eg:- î is a unit vector along x axis

77 Views

the poyntings vector defines the?

Anirudh Singh 13th Jan, 2021

Hi.

In physics, the Poynting vector represents the directional energy flux (the energy transfer per unit area per unit time) of an electromagnetic field. The SI unit of the Poynting vector is the watt per square meter (W/m 2 )

I hope this answers your query

Good Luck

3927 Views

The resultant of forces F1=3i-4j+2k F2=2i+3j-k F3=2i+4j-5k is

Nikhitha Sai 14th Sep, 2020

Hello student.

These are the three forces mentioned in the question.

F1=3i-4j+2k

F2=2i+3j-k

F3=2i+4j-5k

Resultant of these forces in sum of these forces. So add up these three.

There by Resultant of these forces is F1+F2+F3

which is equal to (3i-4j+2k +(2i+3j-k )+(2i+4j-5k )

7i+3j-4k is the required answer

173 Views

how to take out mod of cos theta = A vector . B vector upon A B if A vector = 3 i cap + 4 j cap and B vector = 12 i cap + 5 j cap . explain in detail how to take out mod

ojaswiyolo Student Expert 10th Sep, 2020

Hey

I suppose it will be like

A vector into B vector is (3*12)+(4*5)=36+20= 56

AB= root under (3 square+4 square) * root under (12 sqaure + 5 square)= 5+13=18

Hence mod of cos theta will be : 56/18= 3.11(which is not possible hence I guess you got the question wrong and it should have been either -4j cap or -5 j cap(one of these)).

1242 Views

Find angle between A vector = 3icap + 4jcap and B vector = 12 j cap + 5 j cap

Arihant kapoor 9th Sep, 2020

Hello Aspirant

To find angle between two given vectors, we always use the dot product.

The dot product of two vectors is written as:

vector a.vector b = (mod of vector a)*(mod of vector b)*cos(theeta)

Now, a = 3icap + 4jcap, b = 12icap + 5jcap

So, we get vector a. vector b =  (3icap + 4jcap)*(12icap + 5jcap) = 36 + 20 = 56

Also, mod of a = square root(9 + 16) = 5

mod of b = square root(144 + 25) = 13

So, we get 56 = 13*5*cos(theeta)

cos(theeta) = 56/65

theeta = cos - inverse(56/65)

So, the angle between given vectors is cos - inverse(56/65).


73 Views

can any one tell me the important question or topic of vector calculus and multiple integral of maths 1 for external which is on 11december 2019

Ayush 13th Dec, 2020

Hi Candidate,

Vector calculus is the branch of Vector Mathematics which extends the notion of differentiation and integration in three dimensional space.

It is also referred as multi variable calculus which is used for Gravitational Field Problems, Electromagnetic Waves and othe fields which involves numerous dimensions of coordinate. The most important vector calculus includes topics such as Cartesian Formula, Plane and Line Geometry, and Vector Algebra.

Hope that this answer helps you.

The question have been saved in answer later, you can access it from your profile anytime. Access now

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

Careers360 App
150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books