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प्रश्न
Define an electric current.
What is electric current?
उत्तर १
An electric current is measured by the amount of electric charge moving per unit time at any point in the circuit. The conventional symbol for current is I.
उत्तर २
The magnitude of an electric current is the number of electric charges flowing through a conductor in one second.
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संबंधित प्रश्न
What is the unit of electric current?
Why should the resistance of:
an ammeter be very small?
A car headlight bulb working on a 12 V car battery draws a current of 0.5 A. The resistance of the light bulb is:
(a) 0.5 Ω
(b) 6 Ω
(c) 12 Ω
(d) 24 Ω
Draw a circuit diagram to show how two 4 V electric lamps can be lit brightly from two 2 V cells.
Find the effective resistance in the following circuit diagrams (Fig.):
Tick (✓) the correct choice among the following :
In fig .XY is at right angles to the magnetic field. The direction in
which XY should be moved to induce an electron flow in the direction Y to X as indicated by the arrow is
How is direction of current related to the direction of flow of electrons?
True or False – If False give the correct answer
The representation of the electric current is A
