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

State the Effect on the Magnetic Needle in Oersted’S Experiment When:; (A) the Current is Passed Through the Wire. (B) the Current Through the Wire is Increased

Advertisements
Advertisements

प्रश्न

Answer the following question:
State the effect on the magnetic needle in Oersted’s experiment when:  
(a) the current is passed through the wire.  
(b) the current through the wire is increased
(c) the current through the wire is reversed. 

एका वाक्यात उत्तर
Advertisements

उत्तर

In Oersted’s experiment,
  1. When a current is passed through the wire, the magnetic needle gets deflected.
  2. When the current through the wire is increased, the deflection of the magnetic needle increases.
  3. When the current through the wire is reversed, the magnetic needle is deflected in the opposite direction.
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2016-2017 (July)

APPEARS IN

संबंधित प्रश्‍न

An electromagnet does not attract a piece of iron.


Name the scientist who discovered the magnetic effect of current.


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.


What is Maxwell's corkscrew rule? For what purpose is if used?


For the coil in the diagram below, when the switch is pressed:

(a) what is the polarity of end A?
(b) which way will the compass point then?    


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. 


Which way does the wire in the diagram below  tend to move? 

 


A coil is connected to a galvanometer. When the N-pole of magnet is pushed into the coil, the galvanometer deflected to the right. What deflection, if any, is observed when:  

 the N-pole is removed?




A coil is connected to a galvanometer. When the N-pole of magnet is pushed into the coil, the galvanometer deflected to the right. What deflection, if any, is observed when: 

 the S-pole is inserted?


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


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


If the key in the given arrangement is taken out (the circuit is made open) and magnetic field lines are drawn over the horizontal plane ABCD, the lines are ____________.


In the arrangement shown in Figure  there are two coils wound on a non-conducting cylindrical rod. Initially the key is not inserted. Then the key is inserted and later removed. Then


How does the magnetic effect of electric current help in the working of an electric bell? Explain with the help of a diagram.


______ cells cannot be recharged after use.


Sailors use ______ to find direction in order to navigate on the sea.


An electric bell contains an ______, consisting of coils of insulated wire wound around
iron rods.


Make four electromagnets with 20, 40, 60 and 80 turns. Connect them one by one to a battery of 2 cells. Bring the electromagnet near a box of pins. Count the number of pins attracted by it. Compare the strengths of the electromagnets.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×