Home
Class 12
PHYSICS
Two identical cells each of emf epsilon,...

Two identical cells each of emf `epsilon`, having negligible internal reistance r, are connercted in parallel with each other across an external resistance R. What is the current through this resistance.

Text Solution

Verified by Experts

The cells are arranged as shown in the circuit diagram. As the internal resistance is negligible, so total resistance of the circuit = R.
So, current through the resistance, `I = (E)/(R)`.
Promotional Banner

Topper's Solved these Questions

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET-II|35 Videos
  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET-III|25 Videos
  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET III|9 Videos
  • SAMPLE PAPER 2019

    XII BOARDS PREVIOUS YEAR|Exercise SECTION D|6 Videos

Similar Questions

Explore conceptually related problems

Four cell each of emf 2 V and internal resistance 1 ohm are connected n parallel with an external resistance of 6 ohm. The current in the external resistance is

If n cells each of emf E and internal resistance rare connected in parallel, then the total emf and internal resistances will be

n identical cells each of e.m.f. E and internal resistance r are connected in series. An external resistance R is connected in series to this combination. The current through R is

N batteries each of emf E and internal resistance r are first connected in series and then in parallel to an external resistance R. if current through R is same in both cases then.

n identical calls, each of internal resistance (r) are first connected in parallel and then connected in series across a resistance (R). If the current through R is the same in both cases, then

Four cells, each of emf E and internal resistance r, are connected in series across an external resistance reverse. Then, the current in the external circuit is

A cell of emf epsilon and internal resistance r is charged by a current I, then

XII BOARDS PREVIOUS YEAR-XII BOARDS-SET-I
  1. How is mutual inductance of a pair of coils affected when (i) separati...

    Text Solution

    |

  2. The graph shown in the figure represents a plot of current versus volt...

    Text Solution

    |

  3. Two identical cells each of emf epsilon, having negligible internal re...

    Text Solution

    |

  4. The motion of copper plate is damped when it is allowed to oscillate b...

    Text Solution

    |

  5. Define the activity of a radionuclide. Write its SI unit. Give a plot ...

    Text Solution

    |

  6. Welders wear special goggles or face masks with glass windows to potec...

    Text Solution

    |

  7. Write the expression for the de-Broglie wavelength associated with a c...

    Text Solution

    |

  8. Draw typical output characteristics of an n-p-n transistor in CE confi...

    Text Solution

    |

  9. A parallel beam of light of wavelength 500 nm falls on a narrow slit ...

    Text Solution

    |

  10. A slab of materail of dielectric constant K has the same area as the p...

    Text Solution

    |

  11. A capacitor, made of two parallel plates each of plate area A and sepa...

    Text Solution

    |

  12. Explain the term 'drift velocity' of electrons in a conductor. Hence o...

    Text Solution

    |

  13. State the principle of potentiometer. With the help of circuit diagram...

    Text Solution

    |

  14. A convex lens of focal length f(1) is kept in contact with a concave l...

    Text Solution

    |

  15. In the block diagram of a simple modulator for obtaining an AM signal,...

    Text Solution

    |

  16. Write the truth table for the logic circuit shown below and identify t...

    Text Solution

    |

  17. (a) For a given a.c., i = i(m) sin wt, show that the average power dis...

    Text Solution

    |

  18. A rectangular conductor LMNO is place in a uniform magnetic field of 0...

    Text Solution

    |

  19. A wheel with 8 matallic spokes each 50 cm long is rotated with a speed...

    Text Solution

    |

  20. The galvanometer, in each of the two given circuits deos not show any ...

    Text Solution

    |