CBSE Class 12-science Answered
We say that current is not a vector, even though it has direction because its direction is fixed. In the case of dipole moment, its direction is always from the negative end of dipole to the positive end. Then why cant we apply the same convention to a dipole? Why is the dipole moment still treated as a vector?
Asked by Gayathri Rajeev | 26 Mar, 2014, 05:21: AM
Expert Answer
| Electric current I = q/t. As both charge and time are scalars, therefore electric current is a scalar quantity. |
 |
| We show electric current in a wire by an arrow to indicate the direction of flow of positive charge. But such arrows are not vectors because they do not obey the laws of vector algebra. This point can be explained y referring to fig. The wire OA and OB carry currents of 3A and 4A respectively. The total current in the wire CO is 3 + 4 = 7A irrespective of the angle between the wires OA and OB. This is not surprising because the charge is conserved so that magnitudes of current in wires OA and OB must add to give the magnitude of current in wire CO. |
Dipole moment is a vector quantity as it as a particular direction. Its direction is from negative charge to positive charge along the axis of the di-pole.
Answered by | 29 Mar, 2014, 01:48: PM
Concept Videos
-
Electric Charge - Part 1
This video describes the concept of charge, conductors and insulators, and ... -
Gold Leaf Electroscope - Part 1
This video explains the basic properties of electric charges. -
Coulom's Law of Electric Force - Part 1 ...
This video describes Coulomb's law to calculate the force between any two p... -
All about electric fields
Define electric field in terms of Coulomb's force. Apply superposition prin... -
Electric Field Lines
This video explains the representation of electric field due to a single ch...
CBSE 12-science - Physics
Asked by adityagalar2007 | 06 Apr, 2024, 01:06: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by amlanmcob | 06 Apr, 2024, 12:27: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by hussain221man | 05 Apr, 2024, 08:44: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by manishamunda787 | 02 Apr, 2024, 11:07: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by am1954077 | 08 Mar, 2024, 04:57: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by rishabhverma895334 | 01 Mar, 2024, 07:24: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by rameshsanju123 | 08 Feb, 2024, 08:45: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by sachin.sondur2012 | 07 Feb, 2024, 11:26: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by millionairekishan | 25 Jan, 2024, 12:34: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by kalsichaitanya | 30 Dec, 2023, 04:08: PM
ANSWERED BY EXPERT
