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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 battery of three cells 


Draw circuit symbols for  

an open switch


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.


How does the short circuit form? What is its effect?


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


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. 

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?


Match the column ‘A’ with column ‘B’.

Column ‘A’
Column ‘B’
(1) Eka - boron
(a) Germanium
(2) Eka - Aluminium
(b) Scandium
(3) Eka - Silicon
(c) Gallium

What do you understand by the open electric circuit?


Explain the following:
Closed circuit


What is open 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?


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?


Nowadays MCBs are used in homes, for stop the current in the circuit which suddenly increases.


Write scientific reason.

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


What is the use of earthing wire?


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


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


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


In a simple circuit, why does the bulb glow when you close the switch?


The rate of flow of electric charges in a circuit is called ______.


In a circuit, if the key is in open (off) condition, then electricity will not flow.


In an electric circuit, the current starts from ______.


When an electric current flows through a copper wire AB as shown in the following figure, the wire


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


In which of the following circuits A, B and C given in the following figure, the cell will be used up very rapidly?


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


An electric motor rated 1100 W is connected to 220 V mains. Find: 

  1. The current drawn from the mains,
  2. Electric energy consumed if the motor is used for 5 hours daily for 6 days.
  3. Total cost of energy consumed if the rate of one unit is 5.

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