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प्रश्न
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उत्तर
The current flowing through a conductor is directly proportional to the potential difference across its ends, provided the temperature and other physical conditions remain constant.
According to Ohm’s law, the current flowing in a conductor is directly proportional to the potential difference across its ends provided the physical conditions and temperature of conductor remains constant.
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संबंधित प्रश्न
Define the unit of current.
Draw the electrical symbols of the following components and state its use:
Rheostat (variable resistance)
Fill in the folloing blank with suitable words:
A current is a flow of ............... .For this to happen there must be a ............... circuit.
V1, V2 and V3 are the p.ds. across the 1Ω, 2Ω and 3Ω resistors in the following diagram, and the current is 5 A.
Which one of the columns (a) to (d) shows the correct values of V1, V2 and V3measured in volts?
`V_1` `V_2` `V_3`
(a) 1.0 2.0 3.0
(b) 5.0 10.0 15.0
(c) 5.0 2.5 1.6
(d) 4.0 4.0 2.0
Fill in the blank :
1 mA = ............................. A.
What determines the direction of flow of electrons between two charged conductors kept in contact?
In current electricity, a positive charge refers to ______.
What are the effects of electric current?
