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in Current Electricity by (26.1k points)
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“Electric current has both direction and magnitude” 

1. What is meant electric current

2. What is the conventional direction of electric current

3. Even though current has both magnitude and direction it is not a vector quantity. Why?

4. Thermal Motion of electrons in a conductor cannot constitute an electric current. Why?

1 Answer

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1. Rate of ow of charge is called current I = dq/dt

2. Direction of motion of positive charges

3. It does not obey vector law of addition

4. Average velocity of thermal motion is zero. Hence thermal motion does not produce current.

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