An automobile has a vertical antenna 1.45 m long. The automobile travels at 90 km/h on a horizontal road where the Earth's magnetic field is 59.0 µT directed to the north and downward at an angle of 65.5° below the horizontal. Calculate the maximum magnitude of the induced emf in the antenna.

Explanation:

We are given that

Length of antenna,l=1.45 m

Earth's magnetic field,

Speed,v=90 km/h=

Magnitude of maximum induced emf in the antenna=

Substitute the values

the answer is b

explanation:

explanation:

as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.