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What Happens to the Other Bulbs in a Series Circuit If One Bulb Blows Off? - Science

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प्रश्न

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

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उत्तर

When a bulb in a series circuit blows off, the power supply to all other bulbs is cut off. Hence, all the other bulbs are switched off.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Electricity - Exercise 6

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संबंधित प्रश्‍न

Define the unit of current.


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

Rheostat (variable resistance)


Three 2 V cells are connected in series and used as a battery in a circuit. 

How many joules of electrical energy does 1 C gain on passing through (i) one cell (ii) all three cells?


If the charge on an electron is 1.6 × 1019 coulombs, how many electrons should pass through a conductor in 1 second to constitute 1 ampere current?


In the circuit diagram given below five resistances of 10 Ω, 40 Ω, 30 Ω, 20 Ω, and 60 Ω are connected as shown to a 12 V battery. 

  

Calculate:
(a) total resistance in the circuit. 

(b) total current flowing in the circuit.

 


Two lamps, one rated 40 W at 220 V and the other 60 W at 220 V, are connected in parallel to the electric supply at 220 V.  


(a) Draw a circuit diagram to show the connections.
(b) Calculate the current drawn from the electric supply.
(c) Calculate the total energy consumed by the two lamps together when they operate for one hour.


Calculate the effective resistance between the points A and B in the network shown below in Figure 8.45   


Calculate the equivalent resistance between A and B in the adjacent diagram.


A battery of e.m.f. 15 V and internal resistance 3 ohm is connected to two resistors of resistance 3 ohm and 6 ohm in series. Find:
(i) The current through the battery,
(ii) The p.d. between the terminals of the battery.


What is international convention of colour coding in a cable?


State the commercial unit of electrical energy.

Define the following:

Electromotive force


What are the factors on which the resistance of a conductor depends? Distinguish between conductors and insulators.

What is the function of a step-up transformer?


How can you convert a moving coil galvanometer into ammeter and voltmeter?

A primary of 800 turns is connected to a 220 V A.C. supply and the secondary has 8 turns. What will be the output voltage?

State the condition when it is advantageous to connect cells in parallel.


Define an electric current.


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


Match the following:

1. 1 mA a. series
2. 1 pA b. ohmmeter
3. Ammeter  c. 10-6 ampere
4. Electrical resistivity d. 10-3 ampere

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