a conducting square loop of side A root2is rotated in a uniform magnetic field b about point p in the - Physics - Electromagnetic Induction

Question

a
conducting square loop of side A root2is rotated in a uniform
magnetic field b about point p in the plane of the paper as shown
in the figure find the induced emf between p and q and indicate the
relative polarity of the points p and q

Ravi Gupta · Accepted Answer

Induced emf is given  by:e = -dϕdt = dBAcosθdt = BAsinθdθdt = BAωsinθe = 2Bωa2sin90 =  2Bωa2Now polarity of the point p and q :p = positively chargedq will be negatively chargesfor first half and for the second half, p is negatively chargedq is the positively charged

a conducting square loop of side A root2is rotated in a uniform magnetic field b about point p in the plane of the paper as shown in the figure . find the induced emf between p and q and indicate the relative polarity of the points p and q .