# I am trying but.. I am stuck.. please help.. Asked by nitishkrnehu09 | 18th Nov, 2017, 10:45: PM Expert Answer: Since the conducting rod moves in magnetic field, EMF is induced across the endpoints of the rod and the induced emf is    E = -vBl   due to this induced emf, the current flowing in the loop containing the rod, resistor and connecting wire is (E/R) = (-vBI)/R here R is resitance  Since induced current flowing in magnetic field, the force on conductor is B×i×l and this force acts against the movement of conductor Hence this force retards the movement of the rod and the velocity of the rod as a function of time is worked out as below     Power dissipated in the resistor is calculated as given below   (A) As per above calculation it is true that initial KE will be converted fully into heat energy in Resistor   (B) since the induced emf resisting the movement of rod, rod will not continue with velocity v0   (C) Due to current in the circuit, there is power dissipation in the resistor. will not be conveted into maganetic energy   (D) no workdone for magnetic force, since v×B force is perpendicular to the movement of charges Answered by  | 11th Dec, 2017, 05:42: PM Concept Videos This video deals with establishing a relation between electricity & magneti... Establish relation between electricity & magnetism. Faraday's experiments &... This video contains pratice questions on magnetic flux. Practice Test // \$(window).on('load', function(){ // \$(document).ready(function(){ if(showAds){ googletag.cmd.push(function() { /*googletag.defineSlot('/1039154/TopperLearning_WEB/TL_WEB_728x90_BTF', [[970, 90],[728, 90],[468, 60]], 'div-gpt-ad-1539848643692-article-detail-btf') .addService(googletag.pubads()).setCollapseEmptyDiv(true);*/ googletag.defineSlot('/1039154/TopperLearning_V1_WEB/TL_WEB_ROS_728x90_Bottom', [[970, 90], [728, 90]], 'div-gpt-ad-1585746040996-0').addService(googletag.pubads()).setCollapseEmptyDiv(true); }); } // }); // \$(window).on('load', function(){ // \$(document).ready(function(){ if(showAds){ googletag.cmd.push(function() { googletag.display('div-gpt-ad-1585746040996-0'); }); } // }); All Questions Ask Doubt The value of magenetic field produced by coduction current and displacement current are equal at the edges ofor capacitor or not? Suppose this page is perpendicular to a uniform magnetic field and the magnetic flux through it is 5 wb. If the page is turned by 30 degrees around an edge the flux through it will be: 1. 5.0 wb 2. 4.3 wb 3. 10.0 wb 4. 2.5 wb 5. 5.8 wb Why displacement current is induced in a coil by change in magnetic flux produced by another coil in vicinity? What is magnetic flux? Write an expression for the magnetic flux linked with the surface? What is the units of magnetic flux? How are they related? Is magnetic flux a scalar or vector quantity? A coil of area 0.5 m² is situated in a uniform field B = 2 Wb/m² and the normal to the plane of the coil makes an angle of 60° with respect to the magnetic field. Find the magnetic flux through the area A. A circular coil and a bar magnet placed nearby are made to move in the same direction. If the coil covers a distance of 2 m in 1 sec and the magnet a distance of 4 m in 2 sec. calculate the induced emf produced in the coil. Enlist the factor on which the magnetic flux linked with the circuit depends. When is the magnetic flux linked with the circuit (a) maximum and (b) minimum? Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.

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