हिंदी

Which Effect of Current is Utilised in the Working of an Electric Fuse?

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प्रश्न

Which effect of current is utilised in the working of an electric fuse?

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उत्तर

The heating effect of current is utilised in the working of an electric fuse.

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अध्याय 4: Electricity - Exercise 8

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लखमीर सिंग Physics [English] Class 10
अध्याय 4 Electricity
Exercise 8 | Q 5

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संबंधित प्रश्न

Choose the correct alternative and rewrite the following sentence.

When the resistance of a conductor increases, the current will ________ increase.


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


In 10 s, charge of 25 C leaves a battery, and 200 J of energy are delivered to an outside circuit a result. 

What is the p.d. across the battery?


In 10 s, charge of 25 C leaves a battery, and 200 J of energy are delivered to an outside circuit a result. 

What current flows from the battery?


A battery of 9 V is connected in series with resistors of 0.2 Ω, 0.3 Ω, 0.4 Ω, 0.5 Ω and 0.12 Ω. How much current would flow through the 12 Ω resistor?


What happens to the other bulbs in a series circuit if one bulb blows off?


Give three reasons why different electrical appliances in a domestic circuit are connected in parallel.


Ten bulbs are connected in a series circuit to a power supply line. Ten identical bulbs are connected in a parallel circuit to an identical power supply line. 

(a) Which circuit would have the highest voltage across each bulb?


In which of the following cases more electrical energy is consumed per hour?

(i) A current of 1 ampere passed through a resistance of 300 ohms.
(ii) A current of 2 amperes passed through a resistance of 100 ohms. 

 


State the relation between work, charge and potential difference for an electric circuit.


Name the physical quantity which equals the product of voltage and current.

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

What do you mean by A.C.?

What type of electricity is supplied to us at houses?

What would be the danger involved in replacing a blown fuse with the one which would carry a large current?


Tick (✓) the correct choice among the following :

There are 500 turns and 2000 turns in the primary and secondary coil of a
transformer respectively. If th e output voltage is 1000 V, how large is the
input voltage?


A bulb is connected to a battery of p.d. 4 V and internal resistance 2.5 Ω . A steady current of 0.5 A flows through the circuit. Calculate:

The energy dissipated in the bulb in 10 minutes.


How should the electric lamps in a building be connected?


Name any two devices, which are working on the heating effect of the electric current.


Define the following:

Conventional current


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