Home
Class 12
PHYSICS
As shown in the figure a metal rod makes...

As shown in the figure a metal rod makes contact and complete the circuit. The circuite is perpendicular to the magnetic field with `B=0.15`tesla. If the resistance is `3Omega` force needed to move the rod as indicated with a constant speed of `2m//sec` is

A

`3.75xx10^(-3N)`

B

`3.75xx10^(-2N)`

C

`3.75xx10^(2N)`

D

`3.75xx10^(-4N)`

Text Solution

Verified by Experts

The correct Answer is:
1
`F=iBl=(VBl)/(R )Bl`
`F=(VB^(2)l^(2))/(R )`
Promotional Banner

Topper's Solved these Questions

  • MOCK TEST 9

    CAREER POINT|Exercise CHEMISTRY|30 Videos

  • MOCK TEST 8

    CAREER POINT|Exercise Part (B) -CHEMISTRY|28 Videos

  • PRACTICE TEST - 5

    CAREER POINT|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

As shown in figure, a metal rod completes the circuit. The circuit area is perpendicular to a magnetic field with B = 0.15 T . If the resistance of the total circuit is 3 Omega , how large a force is needed to move the rod as indicated with a constant speed of 2 m/s?

A metallic rod completes its circuit as shown in the figure. The circuit is normal to a magnetic field of B=0.15 tesla. If the resistances of the rod is 3Omega the force required to move the rod with a constant velocity of 2m//sec is-

A 0.5m long metal rod PQ completes the circuit as shown in the figure. The area of the circuit is perpendicular to the magnetic field of flux density 0.15 T . If the resistance of the total circuit is 3Omega calculate the force needed to move the rod in the direction as indicated with a constant speed of 2 ms^(-1)

Imagine a would where free magnetic charges exist. In this world, a circuit is made with a U shape wire and a rod free to slide on it. A current carried by free magnetic charges can flow in the circuit. When the circuit is placed in a uniform electric field. E perpendicular to the plane of the plane of the circuit and the rod is pulled to the right with a constant speed v, the "magnetic EMF" in the current and the direction of the corresponding current. arising because of changing electric flux will be (l is the length of the rod and c is speed of light).

A metal rod of length l cuts across a uniform magnetic field B with a velocity v. If the resistance of the circuit of which the rod forms a part is r, then the force required to move the rod is

A uniform rod of mas m is moving with constant velocity v_(0) in a perpendicular uniform magnetic field B as shown. The resistance of rod is r . The current flowing through rod, R_(I) and R_(2) will be

CAREER POINT-MOCK TEST 9-CHEMISTRY
  1. As shown in the figure a metal rod makes contact and complete the cir...

    Text Solution

    |

  2. If uncertainty in position and momentum are equal then uncertainty in ...

    Text Solution

    |

  3. Hydrolysis of one mole of peroxodisulphuric acid produces

    Text Solution

    |

  4. Which one of the following is an inner orbital complec as well as diam...

    Text Solution

    |

  5. In which of the following compound is hydroxylic proton the most acidi...

    Text Solution

    |

  6. The correct name of the structure

    Text Solution

    |

  7. The gold numbers of protective colloids A,B,C and D are 0.04, 0.004 , ...

    Text Solution

    |

  8. In a solid, oxide ions are arranged in ccp, cations 'A' occupy one six...

    Text Solution

    |

  9. Delta(r)U^(@) of formation of CH(4) (g) at certain temperature is - 3...

    Text Solution

    |

  10. Which of the following statements is incorrect ? Standard Gibbs free e...

    Text Solution

    |

  11. Calculate Osmotic Pressure of a solution obtained on mixing 100 mL of ...

    Text Solution

    |

  12. Monomer related to Nylon 26 is

    Text Solution

    |

  13. Arrange in increasing order of solubility of AgBr in solutions given ...

    Text Solution

    |

  14. Green house gases are-

    Text Solution

    |

  15. In which process maximum energy is released ?

    Text Solution

    |

  16. M(g)rarrM(g)^(+)+e^(-),DeltaH1=100 KJ//mol M(g)rarrM(g)^(+2)+2e^(-),...

    Text Solution

    |

  17. Which of the following in non linear

    Text Solution

    |

  18. The quantity [PV/kT] represent

    Text Solution

    |

  19. When the concentration of alkyl halide is triple and concentration of ...

    Text Solution

    |

  20. Product:

    Text Solution

    |

  21. Which of the following reaction is possible ?

    Text Solution

    |