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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Find the odd one out and give its explanation. Temperature, Conduction, Convection, Radiation - Science and Technology 1

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प्रश्न

Find the odd one out and give its explanation.

पर्याय

  • Temperature

  • Conduction

  • Convection

  • Radiation

MCQ
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उत्तर

Temperature

Explanation-

Temperature is a degree of hotness while conduction, convection, and radiation are modes of heat transfer.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Effects of electric current - Find odd one out.

संबंधित प्रश्‍न

What do the following symbols mean in circuit diagrams?  


Draw circuit symbols for  

 a cell 


Draw circuit symbols for 

A closed switch


Draw the labelled diagram of an electric circuit comprising of a cell, a resistance, an ammeter, a voltmeter and a closed switch (or closed plug key). Which of the two has a large resistance : an ammeter or a voltmeter?


Draw a circuit diagram to show how 3 bulbs can be lit from a battery so that 2 bulbs are controlled by the same switch the third bulb has its own switch. 

 


Tell the odd one out. Give proper explanation.


Observe the following figure which bulb get fuse?

 


The following figure shows the symbols for components used in the accompanying electrical circuit. Place them at proper places and complete the circuit.

Which law can you prove with the help of above circuit?


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.

In an electric circuit, a battery and a bulb have been connected and the battery consists of two cells of equal potential difference. If the bulb is not glowing, then which tests will you perform in order to find out the reason for the bulb not glowing?


What do you understand by an electric circuit?

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


Write the condition required for a circuit to be a closed circuit. 


What do you understand by the open electric circuit?


Draw a neat diagram showing a closed electric circuit.


Name the instrument used to control current in an electric circuit.


Explain the following:
Open circuit


If you touch an electric wire carrying current you get a shock, but if on the same wire the birds sit they do not get any shock/current. Explain why?


What is the potential difference?


Write scientific reason.

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


Draw the circuit diagram for the series connection.


Higher Order Question

A student made a circuit by using an electric cell, a switch, a torch bulb (fitted in the bulb holder), and copper connecting wires. When he turned on the switch, the torch bulb did not glow at all. The student checked the circuit and found that all the wire connections were tight.

  • What could be the possible reason for the torch bulb not glowing even when the circuit appears to be complete?

Study the three electric circuits below. Each of them has a glass rod (G), a steel rod (S), and a wooden rod (W).

In which of the electric circuits would the bulb not light up.


_____ has a thin metallic filament that melts and breaks the connection when the circuit is overheated.


What is electric circuit?


Instead of metal wires, a jute string can be used to make a circuit.


In an electrical circuit two resistors of 2 Ω and 4 Ω respectively are connected in series to a 6 V battery. The heat dissipated by the 4 Ω resistor in 5 s will be


Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of 2 Ω in series with a combination of two resistors (4 Ω each) in parallel and a voltmeter across the parallel combination. Will the potential difference across the 2 Ω resistor be the same as that across the parallel combination of 4 Ω resistors? Give reason.


Three bulbs A, B, C are connected in a circuit as shown in the following figure. When the switch is ‘ON’


In an electric circuit a fuse is a ______ ______ to prevent possible fire.


Observe the circuit given:

1. Would any of the bulbs glow when the switch is in the ‘OFF’ position?

2. What will be the order in which the bulbs A, B, and C will glow when the switch is moved to the ‘ON’ position?


What are the essential components of an electric circuit?


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


Name the device which is used to measure the strength of the electric current in an electric circuit.


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