Home
Class 12
PHYSICS
In example 9 if B is the mid point of ro...

In example 9 if B is the mid point of rod then find `e_(OB)le_(BA)`

Text Solution

Verified by Experts

`e_(OB)= (1)/(2)B omega((l^(2))/(4))= B omega l^(2)`
`e_(BA)= (1)/(2)B omega(x^(2))_((l)/(2))^(l)= (1)/(2)B omega xx(3l^(2))/(4)= (3)/(8)B omega l^(2)`
`therefore (e_(OB))/(e_(BA))= (1)/(3)`
Promotional Banner

Similar Questions

Explore conceptually related problems

A(6,1) , B (8,2) and C (9,4) are three vertices of a parallelogram ABCD . If E is the mid - point of DC , then find the area of triangle ADE.

A(6, 1), B(8, 2) and C(9, 4) are three vertices of parallelogram ABCD. If E is the mid-point of DC, then find the area of DeltaADE .

Rod PQ of length 2l is rotating about one end P in a uniform magnetic field B which is perpendicular to the plane of rotation of the rod . Point M is the mid- point of the rod. Find the induced emf between M and Q if the potential between P and Q is 100 V .

Rod PQ of length 2l is rotating about one end P in a uniform magnetic field B which is perpendicular to the plane of rotation of the rod . Point M is the mid- point of the rod. Find the induced emf between M and Q if the potential between P and Q is 100 V .

In a triangle OAB ,E is the mid point of OB and D is the point on AB such that AD:DB=2:1 If OD and AE intersect at P then determine the ratio of OP: PD using vector methods

D is the mid-point of side B C of triangle A B C and E is the mid-point of B D . If O is the mid-point of A E , prove that a r(triangle B O E)=1/8a r(triangle A B C) .

A B C is a triangle in which D is the mid-point of BC and E is the mid-point of A D . Prove that area of triangle B E D=1/4area \ of triangle A B C . GIVEN : A triangle A B C ,D is the mid-point of B C and E is the mid-point of the median A D . TO PROVE : a r( triangle B E D)=1/4a r(triangle A B C)dot

In an equilateral triangle ABC , D is the mid-point of AB and E is the mid-point of AC. Find the ratio between ar ( triangleABC ) : ar(triangleADE)

If A=(1, 2, 3), B=(4, 5, 6), C=(7, 8, 9) and D, E, F are the mid points of the triangle ABC, then find the centroid of the triangle DEF.

ABCD is a square. E and F are respectively the mid-points of BC and CD. If R is the mid-point of EF, prove that ar (DeltaAER) = ar (DeltaAFR) .