Home
Class 11
PHYSICS
In the given circuit current flowing thr...

In the given circuit current flowing through the resistance `20Omega` is `0.3A,` while the ammeter reads 0.8 A. What is the value of `R_1`

A

`30 Omega`

B

`40 Omega`

C

`50 Omega`

D

`60 Omega`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEM

    DC PANDEY|Exercise Only One Option is Correct|27 Videos

  • ELASTICITY

    DC PANDEY|Exercise Medical entrances s gallery|21 Videos

Similar Questions

Explore conceptually related problems

In the given circuit, the current flowing through the resistance 20 Omega is 0.3 A, while the ammeter reads 0.9 A. The value of R_1 is ______ Omega .

In the circuit, the current flowing through 10 Omega resistance

In the circuit, the current flowing through 10Omega resistance is

For what value of R in circuit , current through 4Omega resistance is zero.

For what value of R in circuit, current through 4 Omega resistance is zero ?

In the given circuit, the current in the 8 Omega resistance is 1.5 A. What is the total current (I) flowing in the circuit ?

In the given circuit, a galvanometer with a resistance of 70 Omega is converted to an ammeter 0.05 Omega by a shunt resistance of 0.05 2, total current measured by this device

In the given circuit if no current flows through 5 Omega , what is the value of R so that effective resistance across AB is 4 Omega ?

A battery of emf 2 V and internal resistance r is connected in series with a resistor of 10Omega through an ammeter of resistance 2Omega . The ammeter reads 50 mA. Draw the circuit diagram and calculate the value of r.

DC PANDEY-CURRENT ELECTRICITY-All Questions
  1. In the circuit shown, what is the potential different V(PQ) ?

    Text Solution

    |

  2. Which of the following wiring diagrams could be used to experimentally...

    Text Solution

    |

  3. In the given circuit current flowing through the resistance 20Omega is...

    Text Solution

    |

  4. Power generated across a uniform wire connected across a supply is H. ...

    Text Solution

    |

  5. Rate of dissipation of Joule's heat in resistance per unit volume is (...

    Text Solution

    |

  6. The variation of current (I) and voltage (V) is as shown in figure A. ...

    Text Solution

    |

  7. Six resistors each of 10 ohm are connected shown. The equivalent resis...

    Text Solution

    |

  8. Thirteen resistances each of resistance R ohm are connected in the cir...

    Text Solution

    |

  9. In the given network, the euqivalent resistance between A and B is

    Text Solution

    |

  10. The equivalent resistance between points A and B

    Text Solution

    |

  11. A conductor with rectangular cross section has dimensions (axx2axx4a) ...

    Text Solution

    |

  12. The length of a potentiometer wire is l. A cell of emf E is balanced a...

    Text Solution

    |

  13. A cell develops the same power across two resistances R(1) and R(2) se...

    Text Solution

    |

  14. Two wires of same dimension but resistivity p(1) and p(2) are connecte...

    Text Solution

    |

  15. Current passing through 3 Omega resistance is

    Text Solution

    |

  16. Current passing through 1 Omega resistance is zero. Then the emf E is

    Text Solution

    |

  17. As the switch S is closed in the circuit shown in figure, current pass...

    Text Solution

    |

  18. In the circuit shown in figure

    Text Solution

    |

  19. Find equivalent resistance between A and B

    Text Solution

    |

  20. Two identical batteries, each having emf of 1.8 V and of equal interna...

    Text Solution

    |