Question

Crocodiles are thought to be able to detect changes in the flux due to Earth’s magnetic field as they move their heads. Suppose a crocodile is initially facing north. The horizontal component of Earth’s magnetic field is 48.0 μT. Consider a vertical, circular loop of neurons inside the crocodile’s head with radius 12.8 cm. The loop is initially perpendicular to the horizontal component of Earth’s magnetic field. The crocodile rotates its head 90.0° until it is facing east in a time interval of 4.00 s. What is the average emf induced around this loop of neurons?

Answer 1

Soln induced At fo - BA Cosgol Ifinal BH = 48UT {clonijontal component g Mag. Jied) Aug emf e=ffinal -divitial {st=45} angle b/w Bs Ane, is 90'} final finaal - Borg og Angle blo Bx Ā is o} fruiticd = 488106 XT (12.8) 3104 Tm2 finit 24716.434x10 10 2.4716 x 106 Tam 2 - 10 -2.4716 X10") 0.6179 X10 Volto Poni e 4