Select scalar and vector quantity from the following by giving appropriate reason:-
a) Electric Current
b) Electric Potential
c) Potential Difference
d) Resistance
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a) Electric Current is a scalar quantity.
Reason: electric current should be considered a vector as it has both magnitude and direction. But in addition, vectors obey the law of parallelogram of vectors, which the electric current does not obey. For this reason, current is a scalar quantity and not a Vector.
b) Electric potential is a scalar quantity.
Reason: It is assigned both the negative sign and positive sign only with respect to a certain reference potential or potential of frame of reference. These signs do not imply that electric potential is a vector quantity.
c) potential difference is a vector quantity.
Reason: the potential differences equals the ratio work to charge. As both the quantities are scalar, so is V. The electric field intensity is however a Vector in the direction decreasing potential.
d) Resistance is a scalar quantity .
Reason: Resistance is a scaler quantity as it only has a magnitude. ... Some people have a misconception about resistance is that they equate resistance with a frictional force inherent in a conductor. So, they expect that resistance should be a vector quantity, anti-parallel to the direction of the current.
hope this your answer.
Reason: electric current should be considered a vector as it has both magnitude and direction. But in addition, vectors obey the law of parallelogram of vectors, which the electric current does not obey. For this reason, current is a scalar quantity and not a Vector.
b) Electric potential is a scalar quantity.
Reason: It is assigned both the negative sign and positive sign only with respect to a certain reference potential or potential of frame of reference. These signs do not imply that electric potential is a vector quantity.
c) potential difference is a vector quantity.
Reason: the potential differences equals the ratio work to charge. As both the quantities are scalar, so is V. The electric field intensity is however a Vector in the direction decreasing potential.
d) Resistance is a scalar quantity .
Reason: Resistance is a scaler quantity as it only has a magnitude. ... Some people have a misconception about resistance is that they equate resistance with a frictional force inherent in a conductor. So, they expect that resistance should be a vector quantity, anti-parallel to the direction of the current.
hope this your answer.
Answered by
4
a. electric current is a scalar quantity as it does not obey the law of Parallelogram therefore it is not a vector quantity.
b. electric potential is a vector quantity as it moves in a direction toward another point.
c. potential difference is a vector quantity as it moves from infinity to another point.
d. Resistance is a scalar quantity as it has only magnitude.
b. electric potential is a vector quantity as it moves in a direction toward another point.
c. potential difference is a vector quantity as it moves from infinity to another point.
d. Resistance is a scalar quantity as it has only magnitude.
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