CBSE > Class 12 > Physics | CBSE Board | Homework Help

It is defined as the ratio of the current density in the wire to the electric field which brings above the flow of electron in the wire. It is reciprocal of the resistivity of the metalic wire
SI unit is siemens per meter (S/m)

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When work for a metal junctions change

Posted by Mohd Asad 6 years, 1 month ago

CBSE > Class 12 > Physics

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All the best my dear friend for physics exam I hope u meet in chemistry

Posted by Aayush Garg 6 years, 1 month ago

CBSE > Class 12 > Physics

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Relation between total internal reflection and critical angle

Posted by Experience Gaming 6 years, 1 month ago

CBSE > Class 12 > Physics

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Shreya .. 6 years, 1 month ago

Critical angle is the smallest angle at which TIR takes

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In insulator(in CB is conduction Band VB is Valance band

Posted by Ashu Kumar 6 years, 1 month ago

CBSE > Class 12 > Physics

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Derive an expression for magnetic field on the axis of current carrying circular loop

Posted by Âkâsh Yádàv 6 years, 1 month ago

CBSE > Class 12 > Physics

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in a reflecting type telecsope, objective lens is replaced by convex parabolic mirror. is this statement true? justify

Posted by Simran Kaur 6 years, 1 month ago

CBSE > Class 12 > Physics

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Shreya .. 6 years, 1 month ago

No. Concave mirror is used

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Faraday,s law give us the

Posted by Harmit Sangwan 6 years, 1 month ago

CBSE > Class 12 > Physics

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Zener diode explaination

Posted by Tulika Verma 6 years, 1 month ago

CBSE > Class 12 > Physics

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Yuvraj Singh 6 years, 1 month ago

Is used as a special purpose voltage regulator working in reberse bias depltion layer increase

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biot servats law

Posted by Banna Sarkar 6 years, 1 month ago

CBSE > Class 12 > Physics

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Yuvraj Singh 6 years, 1 month ago

db=u°/4π idlsintheda/r2

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draw the graph showing the variation of binding energy per nucleon versus mass number A

Posted by Pawan Kumar Rana 6 years, 1 month ago

CBSE > Class 12 > Physics

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Riya Rana 6 years, 1 month ago

Here??!!?

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convex mirror formula

Posted by Kuldeep Chauhan 6 years, 1 month ago

CBSE > Class 12 > Physics

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mirror formula of concex mirror

Posted by Kuldeep Chauhan 6 years, 1 month ago

CBSE > Class 12 > Physics

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For converting a galvanomete an ametter a shunt resistance of small value is used in parrale whereas in the case of a voltmeter a resistance by large value is used in series Expalin why

Posted by Nandini Kumari 6 years, 1 month ago

CBSE > Class 12 > Physics

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an alpha particle and a proton of same kinetic energy are allowed to pass through a magnetic field B acting normal to the direction of motion of particles. calculate the ratio of radii of the circular paths described by them

Posted by Mrihnal Rockzz 6 years, 1 month ago

CBSE > Class 12 > Physics

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Riya Rana 6 years, 1 month ago

It will be 1:1 (r=√2mk/qB)

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Why should a test can negligible small mangnitude

Posted by Tanvi Tyagi 6 years, 1 month ago

CBSE > Class 12 > Physics

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Yuvraj Singh 6 years, 1 month ago

Because test charge enter electric field it does not affected

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