When a car drives through the Earth’s magnetic field, an emf is induced in its vertical 60-cm-long radio antenna. Part A If the Earth’s field (5.0×10−5 T) points north with a dip angle of 38∘, which direction(s) will the car be moving to produce the maximum emf induced in the antenna?
Question
Answer:
Explanation:
The magnetic field is in north south direction . In order to cut lines of forces to the maximum extent , car has to move in east- west direction ie towards east or towards west to produce maximum emf.
emf produced = B L V
where B is horizontal component of earth magnetic field
L is length of rod
v is velocity of car carrying antenna rod .