Question

Discussion - Magnetic Induction (1) Expanding Loop Goal: Apply Faraday's Law. A circular conducting loop in the plane of the paper lies in a 0.75 T magnetic field pointing into the page. The loop's diameter is made to change from 6.0 cm to 10.0 cm in a time interval of 0.50 s. The loop (consisting of a single turn, N - 1) has resistance of 2.50 (a) Draw before and after diagrams showing the loop and the B field. Aftes X x < x x K < x X X х (b) What is the initial magnetic flux through the loop? The final flux? A = 77 (0.03 m2 80.755) (OM)(0.75T). = 0.0021 Wb = 0.024 Wb (c) Determine the direction (clockwise or counter-clockwise) of the induced current. Derive the direction in two ways: • find the direction of the flux change and apply Lenz's Law. we increase flux (0 = AB w ) By increasing diameter, to the direction must oppose the B field, by coming out of the page in part A. . consider a moving positive charge in the loop as it expands radially--what would be the direction of the resulting magnetic force upon it? (Draw a picture!)

Are my current answers correct? I dont know the last answer. Please help, thanks.

Answer 1

Solution in the uploaded images

into the Disuction of flua change Foxcom Disection delen a in bo Before and after is page change in frua, od=4-6 = (5.88-212x10 3 3.77x103 Since Adistue, flux increases into the direction : Tuesang & flux der to induced current will be out and magnetic olisition. Hence induced custent will help of the page Counter clockwise direction. diver page Lena law I e +2 Yu moving charged particles. As loop expands, the charged particle at extreme right will be moving towards right. Hence using Right hand scule, when chayed particle BGX) magnetic force, Force will be in upward direction. Therefore current in the loop will be Counter clockwise. inside noves magnetic field, st experience understood the solutions it hit like if you