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

Asked by Last Modified  

8 Answers

Learn Class XI-XII Tuition (PUC)

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

Important question of semicinductor 1 what is semicinductor explain n-p-n semiconductor briefly 2 what is rectifier , explain half wafe rectifier 3 what is zener diode 4 what is Amplifier , explain common base emitter amplifier in p-n-p
These questions are direct from Semiconductor and Digital Electronics Chapter , Refer Pradeep Fundamental for All above Questions.
Abdhesh
Please let me know what is the fee for class x online tuition?
500 per hour
Dr.C. Sheela Sasikumar
Please explain charging of the earth by thunderstorms ??
The normal movement of electric charges among the Earth's surface, the various layers of the atmosphere, and especially the ionosphere, taken together, are known as the global atmospheric electrical circuit....
Kunal
0 0
7
Measure of the opposition to the flow the free electron is known as __________. (Current, Resistance, Conductance, Capacitance)
Resistance
Narendra Kumar
0 0
5
A coin is tossed. If the outcome is head , a die is thrown. if the die shows up an even number, the die is thrown again. what is the sample space for this experiment ?
Case 1 With first toss if a tail turns up, the experiment stops. So getting a 'Tail' in 1st toss is one event. Case 2 Suppose it is a Head, then we throw a die. Here again the experiment will come...
Kumar Upendra Akshay

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

Ask a Question

Related Lessons

Effective Revision
Hello Students, Whenever you study any topic in the text book, have a mental image of that page. And when you wake up in the morning , do not start reading the entire page or notes again and again. Just...
S

Shikhil B.

0 0
0
Class 12 Economics National income Numericals
Make a list of formulas for Private income, Personal income and Personal Disposable income. Number the components. Establish relation between Domestic product and Private income. First component of...

Shiva Dang G.

0 2
0
Admissions open.
We at Singh Tutorials believe nuturing the talent right from their basics. We now open admissions for 2017-18 batch for all the classes 6th and above. Please contact us for more details. Thanks.

Singh Tutorials

0 0
0
Understanding Computer Science Concepts with Images and Videos..
All Computer science concepts relating to programming and software development are only virtual. It cannot be practically shown as a hardware parts of a computer. But for better understanding it should...

Ganesa M.

0 0
0
For IIT/NEET Aspirants Class 12 Chemistry: Stability Of Metal Alkyl Complex
One determinant of the kinetic stability of metal-alkyl complexes is the presence of hydrogen at the position beta to the metal. If such hydrogens are present and if the metal centre is coordinatively...

Nidhi T.

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 Mumbai
Class 12 Tuition in Kolkata
Class 12 Tuition in Pune
Class 12 Tuition in Jaipur
Class 12 Tuition in Noida
Class 12 Tuition in Lucknow
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