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Which Effect of Current is Utilised in an Electric Light Bulb? - Science

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प्रश्न

Which effect of current is utilised in an electric light bulb?

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उत्तर

The heating effect of current is utilised in an electric bulb.

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अध्याय 1: Electricity - Exercise 8

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लखमीर सिंग Physics (Science) [English] Class 10
अध्याय 1 Electricity
Exercise 8 | Q 4

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संबंधित प्रश्न

What Makes an Electric Current Flow in a Wire?


(a) With the help of a circuit diagram, obtain the relation for the equivalent resistance of two resistances connected in parallel.
(b) In the circuit diagram shown below, find:

(i) Total resistance.
(ii) Current shown by the ammeter 


How do you think the brightness of two lamps arranged in parallel compares with the brightness of two lamps arranged in series (both arrangements having one cell)?


Define the term resistivity. 


An electric current flowing in a wire creates ______ around the wire. 


Is kWh the unit of electrical energy?

State the commercial unit of electrical energy.

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:

A three pin plug is connected to the lead for a 1 kW electric iron to be
used on a 250 V supply. Which of the following statements is not correct?


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


Define the term kilowatt - hour and state its value in S.I. unit.


An electric kettle is rated 2.5 kW, 250 V. Find the cost of running the kettle for two hours at Rs. 5.40 per unit.


At the time of short circuit, the electric current in the circuit ______.


What determines the direction of flow of electrons between two charged conductors kept in contact?


Kilowatt hour is the unit of


Unit of electric power may also be expressed as


Problems for practice:

If 3A current flows through a circuit, then convert the current in terms of a milliampere.


The number of electrons constituting a 1-coulomb charge is ______.


An ammeter is always placed in parallel with the circuit.


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