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26. (a) Define electric current. What is the SI unit of electric current.
(b) One coulomb of charge flows through any cross-section of a conductor in 1 second. What is the one
(c) Which instrument is used to measure electric current ? How should it be connected in a circuit?
al direction of the flow of electric current? How does it differ from the cin
(6) What current flows from
Long Answer Type Question
flowing through the conductor?
Current ? If the
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Answer:
(a)- Electric Current is the rate of flow of electrons in a conductor.
The SI Unit of electric current is the Ampere.
(c)-ammeter is used to measure electric current
An ammeter is connected in series with the circuit to be measured. The ideal ammeter will have zero resistance so as not to disturb the circuit. We will find the shunt as part of the ammeter circuit.
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