Posts Tagged ‘magnetic field’

What are the similarities and differences in magnetic and electric field?

Similarities and differences in magnetic and electric field (Dilpreet posted this question) Similarities Differences  Both electric and magnetic field are conservative forcesBoth obey inverse square law Both are non contact forces (Forces can be exert...

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Be the first to comment - What do you think?  Posted by Mathew Abraham - September 16, 2011 at 5:13 am

Categories: Ask Physics, conservative forces, inverse square law, Project, Similarities, similarities differences   Tags: , , , , , , , , , , , , , , , , ,

Electricfield, Magnetic Field and Photon

We know that photon has no charge. Then where from it gets electric and magnetic field in light? Malik Sajad asks Answer: Electric and magnetic fields are not produced by the photon; it is massless too. But, photon is created by time varying electric a...

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Be the first to comment - What do you think?  Posted by Mathew Abraham - September 15, 2011 at 4:57 pm

Categories: Ask Physics, Electricfield, Project, sajad, varying magnetic field   Tags: , , , , , , , , , , , ,

Why direct currents aren’t used in Home circuits?

How can an alternating current change its direction while moving in a wire or any conductor? Why direct currents aren’t used in Home circuits? RAHUL ASKED Answer: Alternating current is produced by rotating a coil in a strong magnetic field (or ...

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Be the first to comment - What do you think?  Posted by Mathew Abraham - at 5:40 am

Categories: alternating currents, Ask Physics, direct currents, energy loss, Project   Tags: , , , , , , , , , , , ,

DIRECTION OF TORQUE ACTING ON A CURRENT CARRYING LOOP

HOW TO FIND DIRECTION OF TORQUE ACTING ON A CURRENT CARRYING LOOP PLACED IN A MAGNETIC FIELD ? IS THERE ANY RULE ABOUT IT ?

GAURAV NAGPAL asked

Answer:

 

Be the first to comment - What do you think?  Posted by admin - September 14, 2011 at 6:55 pm

Categories: Plus Two Physics   Tags: , , ,

Direction of magnetic field due to a current carrying conductor

“How do we know the direction of magnetic field around the current carrying conductor?” Asked Nikhil Incoming search terms:direction of magnetic field around a current carrying conductorDIRECTION OF MAGNETIC FIELD IN CURRENT CARRYING CONDUCTORmagne...

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Be the first to comment - What do you think?  Posted by Mathew Abraham - September 10, 2011 at 10:55 am

Categories: Ask Physics, Current Electricity, Electromagnetism, Magnetism, Project   Tags: , , , , , , , , , , , , ,

Resultant magnetic force

What is resultant magnetic force? can you please explain with an example. (Shreya) Answer: When a magnetic substance (or a magnet) is placed in a region where there are multiple magnetic fields, the net force due to all of them is called the resultant. In other words, it is that magnetic force which can effectively [...]

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Be the first to comment - What do you think?  Posted by Mathew Abraham - August 31, 2011 at 9:27 pm

Categories: Ask Physics, magnetic force, Project, resultant   Tags: , , , , , , , , , , , , , ,

What is diamagnetism ?

What is diamagnetism? (Shan asked) Diamagnetism is the property of an object which causes it to create a magnetic field in opposition to an externally applied magnetic field, thus causing a repulsive effect. (Wikipedia) Please refer to the following li...

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Be the first to comment - What do you think?  Posted by Mathew Abraham - August 14, 2011 at 1:59 pm

Categories: Ask Physics   Tags: , , , , , , , ,

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