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

Name any two appliances which works on the phenomenon of magnetic effect of electric current.

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प्रश्न

Name any two appliances which works on the phenomenon of magnetic effect of electric current.

Name any three appliances based on the magnetic effect of electric current.

एका वाक्यात उत्तर
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उत्तर

Ammeter, microphone, electric bell, galvanometer, loud speaker, electric generator, electric motor, telephone receiver, radio, stereo speaker.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Effects of electric current - Solve the following Questions

संबंधित प्रश्‍न

Which effect of current can be utilised in detecting a current carrying wire concealed in a wall? 


Fill in the following blank with suitable words: 

The magnetic effect of a coil can be increased by increasing the number of ........... increasing the ........... or inserting an ........... core.


Describe some experiment to show that the magnetic field is associated with an electric current. 


If the direction of electric current in a solenoid when viewed from a particular end is anticlockwise, then this end of solenoid will be:

(a) west pole
(b) south pole
(c) north pole
(d) east pole


The direction of current flowing in the coil of an electromagnet at its two ends X and Y are as shown below:  

  

 What is the polarity of end X?

What is the polarity of end Y?   

Name and state the rule which you have used to determine the polarities. 


Name one device which works on the magnetic effect of current.


 What device reverses the current?


Write the correct option by observing the figures.


(ii) Global warming is a desirable aspect of the intensified greenhouse effect.


Explain the magnetic field created around a straight current carrying conductor with the help of a diagram.


Magnetic effect of current was discovered by ______.


Unscramble the following words:

HTRCO


Paheli does not have a night lamp in her room. She covered the bulb of her room with a towel at the night to get dim light. Has she taken the right step? Give one reason to justify your answer.


Why do we cover plug pin holes which are within the reach of children with cellotape or a plastic cover when not in use?


Edison used a ______ wire coil is a vacuum glass and discovered the first electric bulb in 1879.


A wire with green insulation is usually the live wire of an electric supply.


The figure given below shows the magnetic field around the conductor. Study it and answer the questions:

  1. What changes are caused by increasing current?
  2. What do you see when the magnetic needle is kept a little away from the wire?
  3. In the second part of the figure, the iron filings arrange themselves in a circular manner around the wire. Why does this happen?

A rectangular loop ABCD carrying a current I is situated near a straight conductor XY, such that the conductor is parallel to the side AB of the loop and is in the plane of the loop. If a steady current I is established in the conductor as shown, the conductor XY will ______.


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