[" A wire of length "8m" lying along "z" - axis in a magnetic field of "(2i+4j)" tesla is moving with velocity "],[(4hat i+6hat j+8hat k)ms^(-1)" .The e.m.f between its ends will be "]

A wire of length 4 m placed normal to the plane magnetic field of (2 hat (i) + 4 hat (j)) Tesla is moving with a velocity (4 hat (i)+ 6 hat (j)+ 8 hat (k)) m/s. The emf induced across the ends of the wire will be __

What is the angle between the vector vec( r)=(4hat(i) +8hat(j) +hat(k)) and the x-axis ?

A particle is moving with speed 6 m//s along the direction of vec(A) =2 hat i+2 hat j- hat k , then its velocity is :

Rain is falling with a velocity (-4hat(i)+8hat(j)-10hat(k)) . A person is moving with a velocity of (6hat(i)+8hat(j)) on the ground. The speed with the rain drops hit the person is :

Rain is falling with a velocity (-4hat(i)+8hat(j)-10hat(k)) . A person is moving with a velocity of (6hat(i)+8hat(j)) on the ground. The speed with the rain drops hit the person is :

A plane mirror is moving with velocity 4 (hat i) + 4 (hat j) + 8 (hat k) . A point object in front of the mirror moves with a velocity 3 (hat i) + 4 (hat j) + 5 (hat k) . Here, hat k is along the normal to the plane mirror and facing towards the object. The velocity of the image is

A plane mirror is moving with velocity 4 (hat i) + 4 (hat j) + 8 (hat k) . A point object in front of the mirror moves with a velocity 3 (hat i) + 4 (hat j) + 5 (hat k) . Here, hat k is along the normal to the plane mirror and facing towards the object. The velocity of the image is