##### Get a free home demo of LearnNext

Available for CBSE, ICSE and State Board syllabus.
Call our LearnNext Expert on 1800 419 1234 (tollfree)
OR submit details below for a call back

clear
searchtune
What people are asking?

Asked by R murali

Jul 5, 2014

#### A current through a horizontal power line flows in east to west direction. What is the direction of magnetic field at a point directly below and at a point directly above it.



This answer has an image. Please click on the question to read more.

Asked by Vivek Tripathi

Jul 14, 2015

#### What is the function of earth wire ?Why is it neccssary to earth the metalic body of electric appliances



The main function of the earth wire is to prevent live wire from overloading and absorbs the excess electrons & flows to beneath the ground . It is necessar...

Asked by Narasimha mn

Aug 10, 2013

#### Name the two devices which work on the principle of electromagnetic induction



This answer has an image. Please click on the question to read more.

Asked by karan Sharma

Aug 31, 2013

####   How does a magnetic compass needle deflect in the following situations? i.  If we Place a straight current carrying wire (the direction of the flow current is from north to south) such that the wire is placed over a compass needle such that the wire is parallel to the compass needle, ii.  If we Place a straight current carrying wire (the direction of the flow current is from south to north) such that the wire is placed below a compass needle such that the wire is parallel to the compass needle, iii.  If we Place a straight current carrying wire (the direction of the flow current is from south to north) such that the wire is placed over a compass needle such that the wire is parallel to the compass needle iv.  If we Place a straight current carrying wire (the direction of the flow current is from north to south) such that the wire is placed below a compass needle such that the wire is parallel to the compass needle,



How does a magnetic compass needle deflect in the following situations?
1. If we Place a straight current carrying wire (the direction of the flow cur...

Asked by R murali

Jul 5, 2014

#### What is difference between Permanent magnet and electromagnet?



This answer has an image. Please click on the question to read more.

Jun 15, 2015

#### WHY A FUSE IS ALWAYS CONNECTED IN LIVE WIRE AND NOT IN NEUTRAL WIRE?



This answer has an image. Please click on the question to read more.

Asked by Hajra Ansari

Jul 31, 2015

#### a) Mention the factors on which the direction of force experienced by a current carrying conductor placed in a magnetic feild depend. b) Under what condition is the force experienced by a current carrying conductor placed in a magnetic feild maximum? c) A proton beam is moving along the direction of a magnetic field. What force is acting on the proton beam?



This answer has an image. Please click on the question to read more.

Apr 16, 2014

#### What are factors on which the strength of induced current depends?



1-magnetic field 2-no of turns 3-relative motion

Nov 30, 2014

#### Why does a current carrying conductor experiences a force when it is placed in a magnetic field?



When a current-carrying conductor is placed in a magnetic field the wire experiences a force due to the interaction between the field and the magnetic field produced by the moving charges in the wire.

Asked by R murali

Jul 5, 2014

####  What is solenoid? Draw field lines of magnetic field through and around a current carrying conductor



No answers yet.Be the first to answer

Filters