Home
Class 12
PHYSICS
In the given circuit, the valuue of R so...

In the given circuit, the valuue of `R` so that thermal power generated in `R` will be maximum is:

A

`10Omega`

B

`12Omega`

C

`8Omega`

D

`6Omega`

Text Solution

Verified by Experts

The correct Answer is:
B

For maximum power,
`R=r_(eq)=(20xx30)/(20+30)=12Omega`
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    RESONANCE ENGLISH|Exercise PART - II PHYSICS|106 Videos
  • SIMPLE HARMONIC MOTION

    RESONANCE ENGLISH|Exercise Advanced Level Problems|13 Videos
  • TEST SERIES

    RESONANCE ENGLISH|Exercise PHYSICS|130 Videos

Similar Questions

Explore conceptually related problems

In the given circuit, find the value of R : .

In a circuit shown in figure if the internal resistances of the sources are negligible then at what value of resistance R will the thermal power generated in it will be the maximum. What is the value of maximum power?

Three equal resistace, each of R ohm, are connectedd as shown in the figure. A battery of 2V and of internal resistance 0.1 ohm is connected across the circuit. The value of R for which the heat generated in the circuit maximum will be

Three equal resistances, each of ROmega are connected as shown in figure. A battery of emf 2 V and internal resistance 0.1Omega is connected across the circuit. Calculate the value of R for which the heat generated in the circuit is maximum?

In the circuit shown in figure R_(1)=R_(2)=10Omega, E_(1)=20V, E_(2)=40V . For what value of R, the thermal power developed in it will be maximum (in Omega )?

In the given circuit the average power developed is:

The value of resistor R as shown in the given circuit is such that the power developed in the resistor R is maximum at steady state. The maximum charge stored on the capacitor is 100/K muC . Find K.

In the figur shown, the thermal power generated in 'Y' is maximum when Y = 4 Omega . Then X is

In the given circuit Rt Calculate (a) Current in each branch. (b) Power generated in each resistance. (c )Total power generated in the circuit. (d)Net current drawn from source. (e)Net impedance of the circuit.

A circuit shown in the figure has resistances 20 Omega and 30 Omega . At what value of resistance R_x will the thermal power generated in it be practically independent of small variations of that resistance? The voltage between points A and B is supposed to be constant in this case.

RESONANCE ENGLISH-TEST PAPERS-PHYSICS
  1. A parallel plate capacitor (without dielectric) is charged by a batter...

    Text Solution

    |

  2. Two thin rods of same length l but of different uniform mass per unit ...

    Text Solution

    |

  3. In the given circuit, the valuue of R so that thermal power generated ...

    Text Solution

    |

  4. A closed organ pipe of length l is vibrating in its first overtone. Th...

    Text Solution

    |

  5. Shows an arrangement of identical metal plates paraed parallel to each...

    Text Solution

    |

  6. A cylinder is filled with a liquid of refractive index mu. The radius ...

    Text Solution

    |

  7. A point charge q is placed inside a conducting spherical shell of inne...

    Text Solution

    |

  8. A resistance of 4Omega and a wire of length 5 m and resistance 5Omega ...

    Text Solution

    |

  9. A satellite is launched into a circular orbit of radius R around earth...

    Text Solution

    |

  10. The pitch of a screw gauge is 1 mm and there are 100 division on its c...

    Text Solution

    |

  11. A copper rod and a steel rod of equal cross -sections and lengths (L) ...

    Text Solution

    |

  12. The left plate of the capacitor shown in the figure carries a charge +...

    Text Solution

    |

  13. A ray of light falls normally on one face of a right angled prims of r...

    Text Solution

    |

  14. The work done an a particle of mass m by a force K[(x)/((x^(2) + y^(...

    Text Solution

    |

  15. In the given situation, for what value of i, the incidence ray will re...

    Text Solution

    |

  16. A circuit is shown below.

    Text Solution

    |

  17. In the circuit, V is potential differences across the terminal as shwo...

    Text Solution

    |

  18. Find the ratio of charges on 5muF and 10muF capacitor when circuit is ...

    Text Solution

    |

  19. There exist magnetic field vec(B)=yhat(i)-xhat(j) in space. What is cu...

    Text Solution

    |

  20. Four metallic plates are sued to form two identical parallel plate cap...

    Text Solution

    |