If current is a scalar quantity then why current density is a vector quantity..???

Asked by Last Modified  

8 Answers

Follow 0
Answer

Please enter your answer

Current is scaler because it is produced due to drift movement of charge and current density is vector because current per unit area which means in particular wire current flows,and that wire have particulare surface area,so this surface area have its normal vector which is perpendicular to that surface...
read more
Current is scaler because it is produced due to drift movement of charge and current density is vector because current per unit area which means in particular wire current flows,and that wire have particulare surface area,so this surface area have its normal vector which is perpendicular to that surface area, so j=I/A(vector) ,any scaler quantity divided by vector is vector quantity. So current density is vector quantity read less
Comments
Dislike Bookmark

because current density follow law of vector addition
Comments
Dislike Bookmark

because it obeys the definition of vector.
Comments
Dislike Bookmark

current doesn't follow vector addition and decomposition law,so it is not a vector.Current density is a vector quantity.
Comments
Dislike Bookmark

Conceptual Maths Faculty

Current is scalar quantity as its doesn't obey triangle law of add however current passing throughunit area in unit time is current density as for infinitesimal area
Comments
Dislike Bookmark

Math Educator for Std.11th ,12th , Engineering Entrance and Degree Level with 11+ Years Experience

CURRENT DENSITY IS A VECTOR QUANTITY BECAUSE IT IS CURRENT PER UNIT AREA WHICH OBEYS VECTOR ADDITION
Comments
Dislike Bookmark

Techearcher

Actually current density is current per unit area. The area taken over here is the area vector which has its own magnitude and direction(directed normal to the projected area)
Comments
Dislike Bookmark

Learn from experienced Digital Marketing Expert

current is the dot product between area (a vector) and current density (vector) hence the result is scalar.
Comments
Dislike Bookmark

View 6 more Answers

Related Questions

. Process in which there is no heat exchange is called __________ Process. (Isothermal, Isochoric , Adiabatic, Isobaric)
Adiabatic
Narendra Kumar
Define asymptote?
A straight line that continually approaches a given curve but does not meet it at any finite distance.
Prakash
Hi friends, please solve the following problem and post the solution ? If Sin (3x) = (root 10) / 8 then Sin x = ?
Sin(3x)=(root10)/8 Squaring both sides (Sin^2)3x=10/64=5/32 (1-cos6x)/2=5/32 1-cos6x=5/16 1-5/16=cos6x Cos3x2x=11/16 4(cos^3)2x-3cos2x=11/16 64(cos^3)2x-48cos2x_11=0 For cos2x =-1/4 the equation...
Bhaskar B.
lim(x ?0)? (1+sin?x )^cot? x = ?
Dear Akshay, the question is not clear as there is some typing error. Please post the question again.
Kumar Upendra Akshay
The dispersion of white light into seven different colours when passed through a prism is due to __________. (different intensities, different amplitudes, different wavelengths)
different wavelengths
Kumar Upendra Akshay
0 0
7

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Vedic Mathematics for Multiplication of two 2-digited special numbers
In case of two 2-digited numbers whose digits in 10's place are same and sum of the digits in unit places is 10 For example:- 38 and 32 (10's place digits are equal and 8+2=10) 38×32 can be found...
N

Naimish K.

0 0
1
If (x+a)(x+1991) + 1 Can Be Factored As (x+b)(x+c) Where B,C Are Integers Then Find The Sum Of All Possible Integral Values Of A?
Answer: Method 1: x^2+(1991+a)x+1991a+1 Now for integers d should be either 0 or perfect square so, (1991+a)^2-4*1991a-4 (1991-a)^2-4 (1989-a)(1993-a) They both can be equal so for d = 0 a = 1989,...

Sujoy Das

2 0
0
Business Studies CLASS - XII, Ch - 1, 2, 3 Questions And Answers.
Business Studies: CLASS - XII Ch- 1, 2, 3 MM: 32 Time: 1 hour What is meant...

Mahesh Kumar

1 0
0
A small grammar test to help improve your skills
Though, although, even if, even though, in spite of, or despite? The expressions though, although, even though and even if are conjunctions. They are followed by clauses. Despite and in spite of are prepositions...

Madhu Simon

1 0
0
Java An Introduction
Java- An introduction Java technology is both a programming language and a platform. The Java Programming Language The Java programming language is a high-level language that can be characterized...

Raghavendra Kumar Pandey

0 0
0

Recommended Articles

Meet Radhe Shyam Burman, an MBA Tutor from...

Radhe Shyam is a highly skilled accounts and finance trainer with 8 years of experience in teaching. Accounting is challenging for many students and that’s where Radhe Shyam’s expertise comes into play. He helps his students not only in understanding the subject but also advises them on how to overcome the fear of accounts...

Read full article >

Meet Mohammad Wazid, a skilled trainer for...

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Meet Urmila, an MBBS tutor from Bangalore

Urmila is a passionate teacher with over 8 years of experience in teaching. She is currently pursuing her Ph. D. She provides classes for Class 11, Class 12, MBBS and Medical tuition.  Urmila began her career in teaching long before she became a teacher. She used to provide classes for foreign national students in her college...

Read full article >

Meet Swati, a Hindi Tutor from Bangalore

Swati is a renowned Hindi tutor with 7 years of experience in teaching. She conducts classes for various students ranging from class 6- class 12 and also BA students. Having pursued her education at Madras University where she did her Masters in Hindi, Swati knows her way around students. She believes that each student...

Read full article >

Find Class 12 Tuition near you
Class 12 Tuition in Delhi
Class 12 Tuition in Bangalore
Class 12 Tuition in Hyderabad
Class 12 Tuition in Chennai
Class 12 Tuition in Kolkata
Class 12 Tuition in Mumbai
Class 12 Tuition in Pune
Class 12 Tuition in Noida
Class 12 Tuition in Lucknow
Class 12 Tuition in Gurgaon
Online Tuition Class 12

Looking for Class 12 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you