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प्रश्न
Name the instrument used to control the current in an electric circuit.
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उत्तर १
A rheostat is used to control current in an electric circuit.
उत्तर २
संबंधित प्रश्न
State three differences between the primary and secondary cells.
Write symbol and state function of following component in an electric circuit :
ammeter
How is the current flowing in a conductor changed if the resistance of conductor is doubled keeping the potential difference across it the same?
Name the physical quantity of which the unit is ohm
There is a positively charged sphere A and negatively charged sphere B, such that they are brought in electrical contact by a copper wire.
Which sphere is at higher potential before electrical contact on the basis of convention?
Assuming that the charges of an electron is 1.6 × 10-19 coulombs, the number of electrons passing through a section of wire per sec, when the wire carries a current of one ampere is:
What amount of work is required in moving 3 C charge through a potential difference of 6 V?
What is the physical meaning of resistance?
