A jet plane is travelling towards west at a speed of `1800 km h^-1`. What is the voltage difference developed between the ends of the wings having a span of 25 m, if the Earth's magnetic field at the location has a magnitude of `5 xx 10^-4T`and the dip angle is `30^@`

An aircraftof wingspanof 50 m flieshorizontally in earth's magnetic field of 6 xx 10^-5 T at a speed of 400 m//s . Calculate the emf generated between the tips of the wing of aircarft.

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0ms^-1 at right angles to the horizontal component of the earth's magnetic field, 0.30xx10^-4Wb m^-2 What is the direction of the emf?

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0ms^-1 at right angles to the horizontal component of the earth's magnetic field, 0.30xx10^-4Wb m^-2 What is the instantaneous value of the emf induced in the wire?

A horizontal wire 20 m long extending from east to west is falling with a velocity of 10 m/s normal to the Earth s magnetic field of 0.5 xx 10^-4 T . What is the value of induced emf in the wire?

The angle of dip at a place is 37^(@) and the vertical component of the earth's magnetic field is 1.6xx 10^(-5)T. The earth's magnetic field at this place is (tan 37^@=3/4)

A conducting thick copper rod of length lm carries a current of 15 A and is located on the Earth's equator. There the magnetic flux lines of the Earth's magnetic field are horizontal, with the field of 1.3 xx 10^-4 T , south to north. magnetic and direction of the force on the rod, when it is oriented so that current flows from west to east, are

Two pendulums have period T and (5T /4) s. They start S.H.M. at the same time from the mean position , the phase difference between them after the bigger pendulum has completed one oscillation is

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0ms^-1 at right angles to the horizontal component of the earth's magnetic field, 0.30xx10^-4Wb m^-2 Which end of the wire is at the higher electrical potential?