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प्रश्न
Which particles constitute the electric current in a metallic conductor?
उत्तर
The flow of negatively charged particles (electrons) in a metallic conductor constitutes electric current.
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संबंधित प्रश्न
An electric circuit consisting of a 0.5 m long nichrome wire XY, an ammeter, a voltmeter, four cells of 1.5 V each and a plug key was set up.
(i) Draw a diagram of this electric circuit to study the relation between the potential difference maintained between the points 'X' and 'Y' and the electric current flowing through XY.
State two differences between the e.m.f and terminal voltage of a cell.
Draw a schematic diagram of an electric circuit consisting of a battery of two cells each of 1.5 V, 5 Ω, 10 Ω and 15 Ω resistors and a plug key, all connected in series.
In the circuit shown in fig. 6, find the reading of the ammeter A when the switch S is
(a) Opened.
(b) Closed.
State the S.I. units of electrical power.
Calculate the current through a 60 W lamp rated 250 V. If the line voltage falls to 200 V, how is power consumed by the bulb affected?
Electric current passes through a metallic conductor due to the movement of ______.
For current to flow, one needs art open circuit.
