Home
Class 12
PHYSICS
Assume that the batteries in figure have...

Assume that the batteries in figure have negligible internal resistance. Find

a. the current in the circuit,
(b) the power dissipated in each resistor and
(c) the power of each battery, stating whether energy is supplied by or absorbed by it

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
a. `i=(12-6)?(4+8)=0.5A`
b. `P_(R_1)=i^2R_1=1W`
`rarr P_(R_2)=i^2R_2=2W`
c. Power supplied by `E_1=E_1i=6W`
and power consumed by `E_2=E_1i=3W`
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    DC PANDEY|Exercise Level 2 Single Correct|26 Videos

  • CURRENT ELECTRICITY

    DC PANDEY|Exercise Level 2 More Than One Correct|10 Videos

  • CURRENT ELECTRICITY

    DC PANDEY|Exercise OBJECTIVE_TYPE|1 Videos

  • COMMUNICATION SYSTEM

    DC PANDEY|Exercise Subjective|11 Videos

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY|Exercise Medical entrances gallery|25 Videos

Similar Questions

Explore conceptually related problems

Assume that the batteries in the circuit shown in figure- 3.384 have negligible internal resistance. Find (a) The current in the circuit. (b) The power dissipated in each resistor and (c) The power of each battery, stating whether energy is supplied by or absorbed by it.

A 3 volt battery with negligible internal resistance is connected in a circuit as shown in the figure. The current I, in the circuit will be

A battery having 12V emf and internal resistance 3Omega is connected to a resistor. If the current in the circuit is 1A, then the resistance of resistor and lost voltage of the battery when circuit is closed will be

Three resistors having resistances of 1.60 Omega, 2.40 Omega and 4.80 Omega are connected in parallel to a 28.0 V battery that has negligible internal resistance. Find (a) the equivalent resistance of the combination. (b) the current in each resistor. (c) the total current through the battery. (d) the voltage across each resistor. (e) the power dissipated in each resistor. (f) which resistor dissipates the maximum power the one with the greatest resistance or the least resistance? Explain why this should be.

A battery of emf 15 V and internal resistance of 4Omega is connected to a resistor. If the current in the circuit is 2A and the circuit is closed. Resistance of the resistor and terminal voltage of the battery will be

Dertermine the current through the battery of internal resistance 0.5 Omega for the circuit shown in fig. 7.14 . How much power is dissipated in 6 omega resistance ?

an inductor of inductance 2.00 H is joined in series with a resistor of resistance 200 Omega and a battery of emf 2.00 V. At t = 10 ms, find (a) th current in the circuit, (b) the power delivered by the batter, (c ) the power dissipated in heating the resistor and (d) the rate at which energy is being stored in magnetic field.

DC PANDEY-CURRENT ELECTRICITY-Level 1 Subjective
  1. In the Bohr model of hydrogen atom, the electron is pictured to rotate...

    Text Solution

    |

  2. A 120 V house circuit has the following light bulbs switched on : 40 W...

    Text Solution

    |

  3. Assume that the batteries in figure have negligible internal resistanc...

    Text Solution

    |

  4. The potentiometer wire AB shown in figure is 40 cm long. Where the fre...

    Text Solution

    |

  5. An ideal voltmeter V is connected to a 2.0 Omega resistor and a batter...

    Text Solution

    |

  6. In Figure E1=12V and E2=8V (a) What is the direction of the current ...

    Text Solution

    |

  7. In Figure if the potential at Point P is 100 V, what is the potential ...

    Text Solution

    |

  8. Copper has one conduction electron per atom. Its density is 8.89 g//cm...

    Text Solution

    |

  9. An aluminium wire carrying a current has diameter 0.84 mm. The electri...

    Text Solution

    |

  10. A conductor of length l has a non-uniform cross-section. The radius of...

    Text Solution

    |

  11. If a battery of emf E and internal resistance r is connected across a ...

    Text Solution

    |

  12. Two identical batteries each of emf E= 2volt and internal resistance r...

    Text Solution

    |

  13. Two coils connected in series have resistance of 600K Omega and 300 Om...

    Text Solution

    |

  14. An aluminium wire 7.5 m long is connected in parallel with a copper wi...

    Text Solution

    |

  15. The potential difference between two points in a wire 75.0 cm apart is...

    Text Solution

    |

  16. A rectangular block of metal of resistivity p has dimensions d xx 2d x...

    Text Solution

    |

  17. An electrical conductor designed to carry large currents has a circula...

    Text Solution

    |

  18. The resistance of a copper wire and an iron at 20^@C are 4.1 Omega and...

    Text Solution

    |

  19. Find the current supplied by the battery in the circuit shown in figur...

    Text Solution

    |

  20. Calculate battery current and equivalent resistance of the network sho...

    Text Solution

    |