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Observe the Following Figure Which Bulb Get Fuse?

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प्रश्न

Observe the following figure which bulb get fuse?

 

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उत्तर

Bulb A 

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2018-2019 (March) Balbharati Model Question Paper Set 3

संबंधित प्रश्न

Draw a schematic diagram of a circuit consisting of a battery of three cells of 2 V each, a 5 Ω resistor, an 8 Ω resistor, and a 12 Ω resistor, and a plug key, all connected in series.


Draw circuit symbols for 

A closed switch


Tell the odd one out. Give proper explanation.


Find the odd one out and justify it.
Fuse wire, M.C.B., Rubber Gloves, Generator


Two tungsten bulbs of power 50 W and 60 W work on 220 V potential difference. If they are connected in parallel, how much current will flow in the main conductor?


Resistances R1, R2, R3 and R4 are connected as shown in the figure. S1 and S2 are two keys. Discuss the current flowing in the circuit in the following cases.

  1. Both S1 and S2 are closed. 
  2. Both S1 and S2 are open.
  3. S1 is closed but S2 is open. 

The accompanying figure shows some electrical appliances connected in a circuit in a house. Answer the following questions.

  1. By which method are the appliances connected?
  2. What must be the potential difference across individual appliances?
  3. Will the current passing through each appliance be the same? Justify your answer.
  4. Why are the domestic appliances connected in this way?
  5. If the T.V. stops working, will the other appliances also stop working? Explain your answer.

A battery is to be formed by joining 3 dry cells with connecting wires. Show how will you connect the wires by drawing a diagram.


Distinguish between a closed circuit and an open circuit, with the use of suitable labelled diagrams. 


Answer the following question.
With the help of a suitable circuit diagram prove that the reciprocal of the equivalent resistance of a group of resistances joined in parallel is equal to the sum of the reciprocals of the individual resistances. 


Draw a neat diagram showing a closed electric circuit.


In any electric circuit, when the switch is on and the current flows through it why do the wire, switches, bulb or devices become hot?


How much is the potential difference between live and neutral wires?


Increasing the current passing through the wire decreases the magnetic field intensity.


Write scientific reason.

It is beneficial to carry electrical energy in AC form as it is carried over long distances.


Flow of electricity through a closed circuit is _____.


______ is the device used to close or open an electric circuit.


______ is the device used to close or open an electric circuit.


The switch is used to close or open an electric circuit.


In which among the following circuits does the bulb glow?


In the circuit diagram below, 10 units of electric charge move past point x every second What is the current in the circuit ______.


In the circuit shown, which switches (L,M or N) must be closed to light up the bulb?


Draw the circuit diagram for the following series connection


Fuse is


What is electric circuit?


The wiring in a house consists of ______ circuits.


A device that is used to break an electric circuit is called ______.


In the following circuits (Figure), heat produced in the resistor or combination of resistors connected to a 12 V battery will be

(i) (ii) (iii) 

In an electric circuit, the current starts from ______.


Choose the statement which is not correct in the case of an electric fuse.


Name the device used these days in place of electric fuses in electrical circuits.


Draw the symbols of the following circuit components.

Switch in off position


Will the bulb glow in the circuit shown in the following figure? Explain.


Write a short note on the different electrical circuits.


Assertion: People struck by lightning receive a severe electrical shock.

Reason: Lightning carries very high voltage.


Set up the circuit shown in Figure again. Move the key to ‘ON’ position and watch carefully in which direction the compass needle gets deflected. Switch ‘OFF’ the current. Now keeping rest of the circuit intact, reverse the connections at the terminal of the cell. Again switch ‘on’ the current. Note the direction in which the needle gets deflected. Think of an explanation.


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