Home
Class 12
PHYSICS
The current flowing through a wire depen...

The current flowing through a wire depends on time as `I= 3t^(2)+ 2t + 5`. The charge flowing through the cross-section of the wire in time from t= 0 to t= 2 sec is.

A

22C

B

20C

C

18C

D

5C

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2008

    WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS|38 Videos
  • QUESTION PAPER 2010

    WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

The current flowing through a wire depends on time as l=9t^2+4t+1 . What will be the amount of charge flowing through the cross section of wire in time t=1s to t=2s?

Current I flows through a wire depends on time t as follows I=3 t^2+2t+5 How much charge flows through the cross section of the wire from t=0 to t=2 s ?

The current through a wire depends .on time as i=i_0+alphat Where i_0=10 A and alpha=4AS^-1 . The charge crossed through a section of the wire in 10 seconds is

A current of one ampere is flowing through a wire. Calculate the number of electrons flowing through the cross-section of the wire per second?

Current (i) passing through a coil varies with time t as i=2t^(2) . At 1 s total flux passing through the coil is 10 Wb. Then

Current I is flowing through a vertical long wire in the upward direction. The magnetic field at a point on the east of the wire is

If a current I=4pi sin pi t ampere flows through a wire, then find the amount of charge that flows through the wire in (i) t=0 to t=1s and (ii) t=1 s to t=2s.

The current in a conductor varies with time t as I=2t+3t^2 , where I is in ampere and t in second. Electric charge flowing through a section of the conductor during t=3 s and t=3 s is

If a current of 0.5A flows through a metallic wire for 2h, then how many electrons would flow through the wire?

WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2009-Multiple Choice Questions (Physics)
  1. Two identical light waves, propagating in the same direction, have a p...

    Text Solution

    |

  2. The equation of state for n moles of an ideal gas is PV= nRT, where R ...

    Text Solution

    |

  3. At a certain place, the horizontal component of earth's magnetic field...

    Text Solution

    |

  4. The number of electrons in 2coulomb of charge is

    Text Solution

    |

  5. The current flowing through a wire depends on time as I= 3t^(2)+ 2t + ...

    Text Solution

    |

  6. If the charge on a capacitor is increased by 2 coulomb, the energy sto...

    Text Solution

    |

  7. Work done to carry a charge q once along the circular path of radius r...

    Text Solution

    |

  8. Four capacitors of equal capacitance have an equivalent capacitance C(...

    Text Solution

    |

  9. Magnetic field intensity H at the centre of a circular loop of radius ...

    Text Solution

    |

  10. Which of the following materials is the best conductor of electricity?

    Text Solution

    |

  11. One Kg of copper is drawn into a wire of 1mm diameter and a wire of 2m...

    Text Solution

    |

  12. An electrical cable having a resistance of 0.2Omega delivers 10kw at 2...

    Text Solution

    |

  13. A wire of resistance 5Omega is drawn out so that its new length is 3 t...

    Text Solution

    |

  14. Two identical cells each of emf E and internal resistance r are connec...

    Text Solution

    |

  15. To write the decimal number 37 in binary, how many binary digits are r...

    Text Solution

    |

  16. A junction diode has a resistance of 25Omega when forward biased and 2...

    Text Solution

    |

  17. If the electron in a hydrogen atom jumps from an orbit with level n(1)...

    Text Solution

    |

  18. What is the particle x in the following nuclear reaction: ""(4)^(9)Be ...

    Text Solution

    |

  19. An alternating current of rms value 10A is passed through a 12Omega re...

    Text Solution

    |

  20. Which of the following relation represent Biot-Savart's law?

    Text Solution

    |