Home
Class 12
PHYSICS
A battery of emf (epsilon) and internal ...

A battery of emf (epsilon) and internal resistance r is connected across a load resistance `R_L` The plot between output power and load resistance is shown in the figure. value of emf `(epsilon)` and internal resistance respectively will be

A

`20 V, 2(Omega)`

B

`10 V, 2(Omega)`

C

`20 V, 1(Omega)`

D

`10 V, 1(Omega)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A battery of emf epsilon and internal resistance r is connected across a load resistance R_L . The plot between output power and load resistance is shown in the figure The value of emf epsilon and internal resistance r respectively will be

A battery of emf 2V and internal resistance 0.5(Omega) is connected across a resistance in 1 second?

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

A cell of emf epsilon and internal resistance r is connected across a load resistance R (i) Find the maximum power delivered at the load ? (ii) Draw the power (P ) vs load resistance ( R ) graph.

A battery of e.m.f. 10 V and internal resistance 0.5 ohm is connected across a variable resistance R . The value of R for which the power delivered in it is maximum is given by

A battery of emf E and internal resistance r is connected to a variable resistor R as shown in figure. Which one of the following is true ?

A cell of emf E and internal resistance r is connected across an external resistance R . Plot a graph showing the variation o P.D . Across R , verses R .

A battery of emf epsilon and internal resistance r is connected across a pure resistance device (e.f. and electric heater or an electric bulb) of resistance R. Show that the power output of the device is maximum when there is a perfect 'mathcing' between the external resistance adn the source resistance (i.e., where R=r). Determine the maximum power outpur. Or State and prove the maximum power theorem. show that the effciency of a battery when delivering maximum power is only 50% (b) What is power output of the source abvoe if the battery is hosrted? what is the power dissipation inside the battery in that case?

A battery of emf epsilon and internal resistance r is connected across a pure resistance device (e.f. and electric heater or an electric bulb) of resistance R. Show that the power output of the device is maximum when there is a perfect 'mathcing' between the external resistance adn the source resistance (i.e., where R=r). Determine the maximum power outpur. Or State and prove the maximum power theorem. show that the effciency of a battery when delivering maximum power is only 50% (b) What is power output of the source abvoe if the battery is hosrted? what is the power dissipation inside the battery in that case?

AAKASH INSTITUTE-TEST 5-EXAMPLE
  1. A capacitor is charged using a battery and energy stored is U. After d...

    Text Solution

    |

  2. A carbon resistor has coloured strips as shown in figure. Its resistan...

    Text Solution

    |

  3. A battery of emf (epsilon) and internal resistance r is connected acro...

    Text Solution

    |

  4. The potential difference (VP - VQ) between the points P and Q in the p...

    Text Solution

    |

  5. A 1600 W, 180 V heater operates at 180 V. The resistance of heating co...

    Text Solution

    |

  6. A flow of (10^12) electron pre minute in a conducting wire constitutes...

    Text Solution

    |

  7. Kirchoff's law of junction is also called the law of conservation of

    Text Solution

    |

  8. The charger Q(in coulomb) flowing through a resistance (R = 10Omega) v...

    Text Solution

    |

  9. Two 220 volt, 200 W bulbs are connected first in series and then in pa...

    Text Solution

    |

  10. Two cities are 80 km apart. The electric power is sent from one city t...

    Text Solution

    |

  11. Two wires of the same dimensions but resistivities rho(1) and rho(2) a...

    Text Solution

    |

  12. The current density (to J) at cross-sectional area (to A = (2hati + 4h...

    Text Solution

    |

  13. Three identical bulbs are connected in parallel across in ideal source...

    Text Solution

    |

  14. A group of six identical cells each of emf E and internal resistance r...

    Text Solution

    |

  15. In the given circuit, the switch S is closed at time t = 0, then selec...

    Text Solution

    |

  16. In the given circuit, the switch S is closed at time t=0 then select t...

    Text Solution

    |

  17. A group of six identical cells each of emf E and internal resistance r...

    Text Solution

    |

  18. Three identical bulbs are connected in parallel across an ideal source...

    Text Solution

    |

  19. The equivalent resistance between points A and B in the circuit shown ...

    Text Solution

    |

  20. The mixed grouping of partical cells are shown in the figure . The giv...

    Text Solution

    |