{"id":1360,"date":"2023-03-22T16:55:24","date_gmt":"2023-03-22T16:55:24","guid":{"rendered":"https:\/\/vartmaaninstitutesirsa.com\/?page_id=1360"},"modified":"2024-03-05T16:48:32","modified_gmt":"2024-03-05T16:48:32","slug":"chapter-12-magnetic-effect-of-electric-current-2","status":"publish","type":"page","link":"https:\/\/vartmaaninstitutesirsa.com\/index.php\/chapter-12-magnetic-effect-of-electric-current-2\/","title":{"rendered":"chapter 12 magnetic effect of electric current"},"content":{"rendered":"

chapter 12 magnetic effect of electric current<\/u><\/strong><\/h1>\n

1.Electromagnetism: magnetic effect of electric current\u00a0<\/u><\/strong><\/h4>\n

The branch of physics which deals with the study of magnetism due to electricity<\/u> is called electromagnetism<\/em>. The relationship between electricity& Magnetism was firstly given by Oersted which is magnetic effect of electric current as below<\/p>\n

1.Electromagnetism<\/u><\/strong><\/p>\n

SANDEEP SONI\u2019S PHYSICS<\/span><\/strong>\u00a0<\/span><\/strong>COMPETITION CLASSES<\/span><\/strong>\u00a0\u00a0<\/sub><\/span><\/strong><\/p>\n

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\u00a0 <\/span><\/strong>(10+1, 10+2, IIT-JEE<\/span><\/strong>\u00a0(<\/span>Main & Advance<\/span>),<\/span>\u00a0NEET, B.Sc.\u00a0<\/span><\/strong>Agriculture<\/span>,\u00a0<\/span>NDA)\u00a0<\/span><\/strong><\/p>\n

OPP: JHUNTHARA DHARAMSHALA <\/span>NEAR SURKHAB<\/span>\u00a0CHOWK,\u00a0<\/span>HISSAR ROAD SIRSA<\/span>\u00a0 PH-\u00a0<\/span>94676-12340, 8708535733<\/span><\/strong>\u00a0\u00a0<\/span><\/span><\/p>\n

\"\"<\/span>\"\"<\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span>Magnetic Effect of Current<\/span><\/u><\/strong>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><\/p>\n<\/div>\n

1. Electromagnetism<\/span><\/u><\/strong><\/p>\n

The branch of physics which deals with the study of\u00a0<\/span><\/em>magnetism due to electricity<\/span><\/u><\/em>\u00a0is called electromagnetism<\/span><\/em>. The relationship between electricity& Magnetism was firstly given by Oersted which is as below<\/span><\/p>\n

2. Oersted experiments:-<\/span><\/u><\/strong><\/p>\n

\"\"<\/p>\n

\u00a0<\/span><\/strong><\/p>\n

\u00a0<\/span><\/strong><\/p>\n

\u00a0<\/span><\/strong><\/p>\n

\u00a0<\/span><\/strong><\/p>\n

 <\/p>\n

As shown in fig, Oersted found a relation between current & magnetism, when a magnetic niddle is placed parallel to direction of flow of current then the niddle suffer a deflection, when the direction of flow of current is reversed then the deflection is also reverses, the direction of deflection can be given by Ampere\u2019s swimming rule.\u00a0<\/span><\/p>\n

3. Ampere\u2019s swimming rule:-<\/span><\/u><\/strong><\/p>\n

\"F:\\unit<\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

According to this rule, if we assume that a man is swimming in direction of flow of current, such that current is flowing from his feet to head then the north pole of niddle will deflect towards his left hand.<\/span><\/p>\n

Question1: Why does a compass needle get deflected when brought near a bar magnet?<\/span><\/h1>\n

Answer: Magnetic compass needle and bar magnet both have magnetic field. When they brought near to each other, these magnetic fields interact each other giving deflection in needle.<\/span><\/h1>\n

4. Magnetic field:-<\/span><\/u><\/strong><\/p>\n

The space around a magnet or a current carrying conductor in which its magnetic effect can be experienced is called magnetic field<\/span><\/em>. It is a vector quantity & denoted by<\/span>\"\".<\/span><\/p>\n

\u00a0<\/span>So<\/span>\u00a0 \u00a0 \u00a0<\/span>F<\/span>m<\/sub><\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/sub><\/span>=<\/sub><\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/sub><\/span>q<\/span>\"\"\u00a0B Sin\u03b8<\/span><\/p>\n

Unit of magnetic field B:<\/span><\/strong>\u00a0\u00a0\u00a0\u00a0<\/span>SI unit of B is\u00a0<\/span>Tesla or Weber\/metre<\/span><\/u>2<\/sup><\/span><\/u><\/p>\n

5.\u00a0<\/span>Properties of Magnetic Field:<\/span><\/u><\/h1>\n