## Question Text#

An automobile with a radio antenna $${{params.l }}\textrm{ m}$$ long travels at $${{params.v }}\textrm{ km/hr}$$ in a location where the Earth’s horizontal magnetic field is $${{params.B }} \times 10^{-5} \textrm{ T}$$. What is the maximum possible emf induced in the antenna due to this motion?

$$\varepsilon=$$ $$\rm\ V$$