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)Bomega((l^(2))/(4))=(Bomegal^(2))/(8)`
`e_(BA)=(1)/(2)Bomega(x^(2))_(1//2)^(l)=(1)/(2)Bomegaxx(3l^(2))/(4)Bomegal^(2)`
`therefore" "(e_(OB))/(e_(BA))=(1)/(3)`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION - A)|55 Videos

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION - B)|22 Videos

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT(SECTION -D) Assertion-Reason type Question)|15 Videos

  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE ENGLISH|Exercise comprehension|3 Videos

  • ELECTROMAGNETIC WAVES

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION - D Assertion-Reason Type Questions|25 Videos

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) .

AAKASH INSTITUTE ENGLISH-ELECTROMAGNETIC INDUCTION-Try Yourself
  1. A rectangular loop and a circular loop are moving out of a uniform mag...

    Text Solution

    |

  2. Express the induced emf as scalar triple product of vecv, vecB and vec...

    Text Solution

    |

  3. In example 9 if B is the mid point of rod then find e(OB)le(BA)

    Text Solution

    |

  4. If the rod were translating as well as rotating, what will be its emf?...

    Text Solution

    |

  5. Two electric circuits are placed near one another. Each circuit has se...

    Text Solution

    |

  6. Find mutual inductance if we have a square loop of side r instead of a...

    Text Solution

    |

  7. Modern day generators produce electric power as high as 500 MW. How ma...

    Text Solution

    |

  8. Using Gauss's law obtain the expression for the electric field due to ...

    Text Solution

    |

  9. A sheet of relative permeability 100 is placed inside the solenoid, so...

    Text Solution

    |

  10. What is the frequency of rotation of armature coil in AC generators?

    Text Solution

    |

  11. Can an induced electric field exist at a point in space, when no magen...

    Text Solution

    |

  12. Which of the two capacitor plates is at the higher potential ?

    Text Solution

    |

  13. What will be the magnitude and polarity of induced emf across the rod,...

    Text Solution

    |

  14. Can an inductor have potential difference across it ends even if does ...

    Text Solution

    |

  15. Is flux linked with all the inductors in parallel same?

    Text Solution

    |

  16. Two electric circuits are placed near one another. Each circuit has se...

    Text Solution

    |

  17. Find mutual inductance if we have a square loop of side r instead of a...

    Text Solution

    |

  18. A uniform magnetic field exists in the space vecB=B(1)hati+B(2)hatj+B(...

    Text Solution

    |

  19. A uniform magnetic field exists in the space B=B(1)hati+B(2)hatj-B(3)h...

    Text Solution

    |

  20. In the circuit, the current flowing through 10Omega resistance is

    Text Solution

    |