Question

There shows stationary conducting to show-wr. For which the following condition wilcockwise induced current create in the stationary Stationary conducting top Current.carrying wire The current in the horizontal wows to the right and its value is decreasing o The current in the horizontal wire flows to the right and its value is increasing The current in the horizontal wow to the land decreasing The current in the horizontal wirefows to the left and value is increasing O Both choices and Question 13 A collector is usingamaggardius of curvature of 210 cm to the details of a butterfly with a magnification of 5 10 At what distance between the butter and then does she achieve the desired magnification o 13.1 cm o 126cm O 8.40 cm OBB cm O 165 cm Question 14 A convex spherical mirror with a radius of curvature of 100 perates an upright image 29.7 cm from the mirror What is the magnification of the image o 160 0 000 0041

Answer 1

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12 We well use and B Clockwise Induced arrent Current Cerveying wice and B s B es increasing Lenz's law answer this question. stationary conducting loop. we have to see each and every option- option (a) when current flow to the right then magnetic field (B) will be out of the page at the position of stationary conducting loop deresting is current decreasing. So By leng's law and right hand rule Induced werent will be ante clockwise option (B) In this case also pointing out of the page beut now they are so by lenz lanz lew and Right hand rule Induced current will be clockwise option ③ when current flowe towards left t. B will be into the page at the position of stationery conducting loop and is decreasing dewearing lenz lau and Right Hand rule Induced current will be clockwise In this also B Cinto the page) and increasing hence by lenz law and Right Hand sule Induced current will be anticlockwise option (e) Both choices B and is correct B as I is so option Ans was so