Skip to content

Plus Two Physics

Free Help in Physics for Class 11 & 12

  • PHYSICS NEWS
  • Exam Help
  • Interesting Questions
  • Question Bank
  • previous question papers
  • Model Question Papers
  • Entrance Exams
  • Practical Physics
  • HC VERMA
  • ICSE/ISC
  • Revision Tests
  • TEACHERS SECTION
  • Irodov Solutions
  • Solved Problems
  • Soved Numerical Problems
  • Unsolved Numerical Problems
  • Guess paper

Category: Electromagnetism

What does a rheostat control?

What does Rheostat controls? electron drift velocity or quantity of electrons? We know I=nAve I=current n=quantity of electron A=conductor area e=electron charge v=drift velocity (Asked  Partha)

Share with Friends

  • Tweet
  • More
    • Share on Tumblr
    • Email
    • Print
    • Pocket
    Posted on 30 Jun 201230 Jun 2012 by adminPosted in alternating currents, Current Electricity, electrical appliances, ElectromagnetismTagged Barack Obama, Business, Dave Bidini, Georg Ohm, Ohm's law, Physics, Potentiometer, United States. Comments

    Collection of Problems received from Class 12 Physics

    These problems were posted by Geena. Hope that we will be able to post the answers to these questions soon; each in a separate post. By the time visitors can attempt to post their answers as comments to this post. (Only selected posts will be published)   Please note that the answers are not published until the [...]

    Share with Friends

  • Tweet
  • More
    • Share on Tumblr
    • Email
    • Print
    • Pocket
    Posted on 13 Sep 2011 by Mathew AbrahamPosted in Ask Physics, charge density, Electromagnetism, Interesting Questions, potential drop, Project, time answersTagged ammeter, AskPhysics, cell, charge density, internal resistance, Physics, physics teachers, post, potential drop, problem, proton, question, time answers, wire. Comments

    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...

    Share with Friends

  • Tweet
  • More
    • Share on Tumblr
    • Email
    • Print
    • Pocket
    Posted on 10 Sep 2011 by Mathew AbrahamPosted in Ask Physics, Current Electricity, Electromagnetism, Magnetism, ProjectTagged carrying, conductor, conductorDIRECTION, current, direction, electric current, field, fieldLink, magnet, magnetic effect, magnetic field, Physics, post, search terms. Comments

    CERN Large Hadron Collider

    Why is the Large Hadron Collider as large as it is?  I heard today that the actual accelerator portion is only 40 Meters long, the rest is (mostly) magnets that steer the particles, so why does the accelerator need to be 17 miles in circumference?  Does making it larger provide any advantages?   (asked Rick) Incoming search terms:cerncern [...]

    Share with Friends

  • Tweet
  • More
    • Share on Tumblr
    • Email
    • Print
    • Pocket
    Posted on 3 Sep 2011 by Mathew AbrahamPosted in accelerator, Ask Physics, circumference, Collider, Electromagnetism, Interesting Questions, large hadron, Meters, Project, restTagged 3 september, accelerator, Cern, cerncern, circumference, colliderLarge, hadron, large hadron, Meters, particles, Physics, today. Comments

    Visitors

    • 4,048,265 hits

    Popular Posts

    • Class XI Physics Practical Exam Viva Voce
    • Distinguish Plane mirror, Concave mirror and Convex mirror without touching
    • An Exemplary Viva Voce (CBSE Class XII Physics Practical)
    • Physics Revision Help for Half Yearly Exam Class XI CBSE & KVS
    • Class 12 Physics Study materials – Free Download
    • IMPORTANT FIVE MARKS QUESTIONS FOR CLASS XII
    • Derive an expression for current in terms of drift velocity. (Derive I = nAev)
    • What is impact parameter?
    • Physics Practical:: Measurement of diameter of capillary tube using travelling microscope.
    • Class XI Physics Revision Tests - Thermodynamics

    What’s New

    • Why practice old question papers?
    • The exams are approaching, let’s plan our studies to excel
    • How was your Physics exam? CBSE Class 12
    • CBSE exam dates
    • Physics – Foundations and Frontiers

    Subscribe to PlusTwoPhysics via Email

    Enter your email address to subscribe to this blog and receive notifications of new posts by email.

    Join 4,749 other subscribers

    FB Page AskPhysics

    FB Page AskPhysics

    Community

    Tags

    acceleration answer Auto Board examination body CBSE Central Board of Secondary Education class class X class xii conductor direction Draft education electricity ELECTROSTATICS exam field iit India latest link mass motion news numerical numerical problem optics paper Physics position post problem Projectile motion published question question paper question papers search terms speed Student time velocity wire work

    Old Posts

    Proudly powered by WordPress Theme: Colinear by Automattic.