An aircraft with a wingspan of 40 m flies with a speed of 1080 km/hr in the eastward direction at a constant altitude in the northern hemisphere, where the vertical component of the earth's magnetic field `1.75 xx10^(-5)` . Then the emf developed between the tips of the wings is

A metal conductor of length 1 m rotates vertically about one of its ends at angular velocity 5 rad s^(-1) . If the horizontal component of the earth's magnetic field is 0.2xx10^(-4) T , then e.m.f. developed between the two ends of the conductor is

An aeroplane in which the distance between the tips of wings is 50 m is flying horizontal with a speed of 360km//hr over a place where the verticle components of earth magnetic field is 2.0xx10^(-4)webr//m^(2) . The potential different between the tips of wings would be

In a ceiling fan, each blade rotates in a circle of radius 0.5 m. If the fan makes 2 rotation per second and the vertical component of the earth's magnetic field is 8xx 10^-5 T , calculate the emf induced between the inner and outer ends, of each blade.

Calculate the e.m.f. induced between the ends of an axle 1.75 m long of a railway carriage travelling at the rate of 50 km h^-1 . The vertical component of the earth's magnetic field 0.5 xx 10^-4 weber m^-2

A train is moving in the north-south direction with a speed of 108 kmh^(-1) . Find the e.m.f. generated between two wheels, if the length of the axle is 2m. Assume that the vertical component of earth's field is 8.0 xx 10^(-5) Wbm^(-2) .

A metre gauge train is runing due north with a constant speed of 90 km h^-1 on a horizontal track. If the vertical component of earth's magnetic ield is 3xx10^-5 W b m^-2 , calculate the e.m.f. induced across the axle of the train of length 1.25 cm.

A satellite with a 40 cm long copper wire on its bottom is revolving around the earth at 7.8 km per second, such that the wire is perpendicular to the vertical component of earths' magnetic field. Determine the e.m.f. induced across this wire, if the magnitude of the vertical component of magnetic field is 0.2 gauss.

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0 m s^-1 , at right angles to the horizontal component of the earth’s magnetic field, 0.30 xx 10^-4 Wb m^-2 , What is the direction of the emf?

An aeroplane is flying horizontally from west to east with a velocity of 900 km/hour. Calculate the potential differnece developed between the ends of its wings having a span of 20 m. The horizontal component of the Earth's magnetic field is 5 xx 10^-4 T and the angle of dip is 30^@ .