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प्रश्न
<p> Define the unit of electric current (or Define ampere).
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उत्तर
The SI unit of electric current is ampere.
When one coulomb of charge flows through any cross-section of a conductor in one second, the electric current flowing through it is said to be one ampere.
1 ampere= `(1coulomb)/(1second)`
संबंधित प्रश्न
The atoms of copper contain electrons and the atoms of rubber also contain electrons. Then why does copper conduct electricity but rubber does not conduct electricity?
Fill in the folloing blank with suitable words:
A current is a flow of ............... .For this to happen there must be a ............... circuit.
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(a) 30 A
(b) 0.3 A
(c) 0.5 A
(d) 5 A
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(a) The resistance of P to the resistance of Q?
(b) The current in P to the current in Q?
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| Quantity | Unit | |
| (a) | Electrical potential | volt |
| (b) | Resistance | ........ |
| (c) | Power | ........ |
| (d) | Energy | ........ |
| (e) | Resistivity | ........ |
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(a)2x10-7J
(b)200J
(c)Sx106 j
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The direction of Direct Current (DC) is characterized as:
