by drawing a labelled diagram of an electric bell,explain its working.

WHY IS REPULSION THE SUREST TEST FOR MAGNETISM?

a current carrying solenoid is freely suspended .in which direction will it rest?give reason for your answer.

What are the different shapes of a magnet?

 how to make a simple working model of  'electric bell? what are the things needed for this? 

how will you test whether a given rod is a magnet or not?

can two magnetic field lines intersect each other? give reason.

What are the uses of a magnet in our daily life?

principle on which solar cooker,electric bell,transformer,dynamo generator works.

why does a compass needle placed near a current carrying conductor show deflection?

why magnet attracts iron particles?

explain waht is meant by magnetic induction . what role does it play in the attraction of a piece of iron by a magnet?

State the use of magnetic compass.

One of the two rods , identical shape , is a magnet and the other is a soft iron. How will you distinguish them ?

 how to make an electromagnet

 i am not able to veiw the vedios in magnetism and electricity please help me 

Please explain the oersted's experiment in detail . why does the magnetic needle deflect when brought near a current carrying conductor? Does it have have a property to deflect when brought near a magnet and how does the noth and the south pole of the magnetic needle deflect the geographic north and south pole being the same ?

i want notes on electromagnesium 21 pages

short note on a

1 transformer

2 dynamo

3 electric motor

explain the following:

a)when two pins are hung ny their ends from the same pole of a magnet,their pointed ends fly apart.

b)several soft iron pins can be hung one below the other from the pole of the magnet, but they soon fall off when the magnet is removed.

c) the north end of a magnetic needle is attracted towards a piece of small iron placed a little distance away from it.

what is alternating current and direct current

 why is it that the video says that the extended arm of the lady pointed to the north while it is written that the lady's arm is pointing towards the south?

Question 1: State any three properties of magnetic lines of force.

Question 2: An Electromagnetic Waves has a time period of 4 x 10 -8 second. Calculate its frequency.

Question 3: Why does a freely suspended magnetic needle point in geographic North-South direction?

how is alternating current different from direct current?

how will you test the polarity of a magnet?

The geographic north pole is also the magnetic north pole/magnetic south pole and the geographic south pole is also the magnetic north pole/magnetic south pole.[Choose the correct option]

Define earth's magnet.

state whether the magnetic field lines of abar magnet alone represent a uniform magnetic field or non-uniform magnetic field? draw diagram to explain.

What is formula for calculating power?

An electric bulb is marked 220 V- 60 w. What does it mean ?

Why does a bar magnet when suspended freely, always comes to rest in the North-South direction

what is alternating current and direct current PLEASE ANSWER IT TODAY ..... VERY URGENT

what happens to heat produced in a conduction if the time for which current flows is made half?

i could'nt understand oersted's expiriment and ampere's swimming rule.

what is the principle of electromagnetic induction?(please answer quickly. Its urgent)

why are the contact points of an electric bell made from silver-cadmium alloy?