The length of wings for an aeroplane is 5m. If itmoves with `100m//s` velocity parallel to the ground then what will be the induced emf about the wings? [Given angle of dip = `30^@, B_H = 4 xx 10^-4 wb//m^2]`

An aeroplane has its wing span of 36m.If if move with a velocity of 400 km//hr ,what will be its induced emf? (B_v=4xx 10^-5T) -

The distance between the two end-points of the wings of an aeroplane is 5 m and the aeroplane is flying parallel to earth's surface with a velocity of 360 km h^(-1) . If the geomagnetic intensity is 4xx10^(-4)Wb . m^(-2) and the angle of dip at that place is 30^(@) , determine the emf induced between the two end-points of the wings.

A 10m long horizontal wire, lying along the magnetic east-west direction, begins to fall with a velocity of 5.0 m. s^(-1) . What will be the emf induced in the wire? [Given, H=0.3xx10^(-4)Wb.m^(-2) ]

If in air medium the amplitude of the electric field is 5 xx 10^-4v//m , then what will be the amplitude of the magnetic field?

The angle of minimum deviation for any prism ( A = 60^@ ) is 30^@ . If the velocity of light in vaccuum be 3xx 10^8 m//s then what will be its value in the prism?

If the velocity of light in a medium is 2xx10^9 m//s What will be the refractive index of that medium?

If the displacement for any particle is y = 10^-4 sin (600t - 2x + pi/3) m then what will be its velocity in the unit m//s .

The velocity of light in a medium is 2 xx 10^8m//s . What will be the refractive index of the medium?

A conducting wire of length l is rotating with angular velocity w in a magnetic field B perpendicular to it. Prove that the induced e.m.f. at the two ends of the conducting wire is e = 1/2 Bwl^2 .

An aeroplane is travelling at the speed of 360 km//hr along the horizontal to the earth surface'. What is the induced potential developed between the ends of th'e wing 5 m long, if the earth’s magnetic field at the location has-a magnitude of 4 xx 10^-4 wb//m^2 and dip angle is 30^@ ?