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Introduction to Electric Current due to ...
Introduction to Electric Current due to flow of Electrons per unit time
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Important Questions
A long straight wire of radius a carries a steady current
$I.$
The current is uniformly distributed over its cross-section. The ratio o the magnetic fields
$B$
and
$B_{′},$
at radial distances
$2a $
and
$2a$
respectively, from the axis of the wire is
Medium
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>
Define
$1$
ampere.
Easy
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>
Define electric current. What is its
$SI$
unit?
Easy
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>
S.I. unit of electric current is:
Medium
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>
A steady current flow in a metallic conductor of non-uniform cross-section. The quantity/quantities remaining constant along the whole length of the conductor is/are:
Medium
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>
Calculate the steady current through the
$2Ω$
resistor in the circuit shown in the figure.
Hard
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>
The rate flow of electric charge is called ................ .
Easy
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>
A steady current is passing through a linear conductor of non uniform cross-section. The net quantity of charge crossing any cross section per second is
Easy
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>
A current passes through a wire of non-uniform crosssection. Which of the following quantities are independent of the cross-section?
This question has multiple correct options
Medium
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Is electric current a scalar or vector quantity? State the standard unit of electric current.
Medium
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>