मराठी

What is the Conventional Direction of the Flow of Electric Current? How Does It Differ from the Direction of Flow Electrons? - Science

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प्रश्न

What is the conventional direction of the flow of electric current? How does it differ from the direction of flow electrons?

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उत्तर

The conventional direction of the flow of electric current is from the positive terminal of a cell or a battery to its negative terminal through the outer circuit, whereas the direction of flow of electrons is from the negative terminal to the positive terminal of a cell.

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पाठ 1: Electricity - Exercise 2

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संबंधित प्रश्‍न

Draw the electrical symbols of the following components and state its use:

Ammeter.


One coulomb charge is equivalent to the charge contained in:

(a) 2.6 × 1019 electrons
(b) 6.2 × 1019 electrons
(c) 2.65 × 1018 electrons
(d) 6.25 × 1018 electrons


Compare how an ammeter and a voltmeter are connected in a circuit.


What Makes an Electric Current Flow in a Wire?


A car headlight bulb working on a 12 V car battery draws a current of 0.5 A. The resistance of the light bulb is:

(a) 0.5 Ω
(b) 6 Ω
(c) 12 Ω
(d) 24 Ω


State the S.I. unit of current.


What are the conditions under which charges can move in a conductor?

Complete the following sentence:

Fuse wire has a ............ Melting point and it is made of an alloy of ......... and if the current in a circuit rises too high, the fuse wire ...........


The resistance of 100 W (220 V) bulb is greater than that of 60 W (220 V) bulb. Is it true or false?

Tick(✓) the correct choice in the following:

When the length of a conductor is doubled the resistance of the conductor
will


Find the effective resistance in the following circuit diagrams (Fig.):


How is direction of current related to the direction of flow of electrons?


Small amounts of electrical current are measured in milliampere (mA). How many milliampere are there in 0.25 A ?


______ is used to measure the electric current.


The SI unit for electric current is the coulomb.


Conventionally, the direction of the current is taken as:


The flow of electric charge per unit time is called potential difference.


For current to flow, one needs art open circuit.


Define the following:

Conventional current


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