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ans d 4. A square loop of side and resistance R is moved in the region of uniform magnetic field BO remaining completely inside field) , with a velocity v through a distance x . The work done B/2vx A) 2B2C2vx B) 4B? eavx D) none A metallic rod of length L and mass M is moving under the action of two unequal for and F- directed o osite to each other) acting at its ends alon. its len th.\ nore

Dear Student,

\sin c e t h e l o o p r e m a i n c m p l e t e l y i n s i d e t h e m a g n e t i c f i e l d a n d t h e a r e a o f t h e l o o p i s a l s o c o n s \tan t t h e n t h e i n d u c e d E M F w i l l b e z e r o a n d t h e i r w i l l b e n o o p p o \sin g f o r c e . h e n c e t h e w o r k d o n e i s z e r o . o p t i o n R e g a r d s

\sin c e t h e l o o p r e m a i n c m p l e t e l y i n s i d e t h e m a g n e t i c f i e l d a n d t h e a r e a o f t h e l o o p i s a l s o c o n s \tan t t h e n t h e i n d u c e d E M F w i l l b e z e r o a n d t h e i r w i l l b e n o o p p o \sin g f o r c e . h e n c e t h e w o r k d o n e i s z e r o . o p t i o n R e g a r d s