Home
Class 12
PHYSICS
Find the value of R in figure so that th...

Find the value of R in figure so that there is no current in the 50(Omega) resistor.

Text Solution

Verified by Experts

This is a Wheatstone bridge with the galvanometer replaced by the 50(Omega) resistor. There will be no vurrent in the 50(Omega) resistor if the bridge is balanced.
In this case,
`(10(Omega))/(20(Omega))=R/(40(Omega))`
`R=20(Omega).`
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CURRENT IN CONDUCTORS

    HC VERMA ENGLISH|Exercise worked out Example|33 Videos

  • ELECTRIC CURRENT IN CONDUCTORS

    HC VERMA ENGLISH|Exercise Objective 1|15 Videos

  • DISPERSION AND SPECTRA

    HC VERMA ENGLISH|Exercise Question for short Answer|6 Videos

  • ELECTRIC CURRENT THROUGH GASES

    HC VERMA ENGLISH|Exercise Short answer|6 Videos

Similar Questions

Explore conceptually related problems

Current through the 5Omega resistor is

The current through the 5Omega resistor is

In the circuit shown in figure find: a. the current in the 3.00 Omega resistor,b. the unknown emfs E_1 and E_2 and c the resistance R .

The value of current through 2 Omega resistor is

In the circuit of the figure, treat diode as ideal, current in the 4 Omega resistor is

Electric current through 400 Omega resistor is :

A part of a circuit in steady state with the currents flowing in a braches , the value of resistance etc is shown in the figure. Current in the 2Omega resistor is

An ideal voltmeter V is connected to a 2.0 Omega resistor and a battery with emf 5.0 V and internal resistance 0.5 Omega as shown in figure (a) What is the current in the 2.0 Omega resistor? (b) What is the terminal voltage of the battery? (c) What is the reading of the voltmeter?

Find the current through the 10(Omega) resistor shown in figure.

Find the current through the 10(Omega) resistor shown in figure.

HC VERMA ENGLISH-ELECTRIC CURRENT IN CONDUCTORS-questions for short answer
  1. Find the value of R in figure so that there is no current in the 50(Om...

    Text Solution

    |

  2. Suppose you have three resistor each of value (30 Omega).List all the ...

    Text Solution

    |

  3. A proton beam is going from east to west. Is there an electric current...

    Text Solution

    |

  4. In an electolyte, the positive ions move form left to right and the ne...

    Text Solution

    |

  5. In a TV tube, the electrons are accelerated from the rear to the front...

    Text Solution

    |

  6. The drift speed is defined as v(d)=(Delta l//Delta t)where (Delta l)is...

    Text Solution

    |

  7. One of your friends argues that he has read in previous chapters that ...

    Text Solution

    |

  8. When a current is established in a wire, the free electrons drift in t...

    Text Solution

    |

  9. A fan with copper winding in its motor consumes less power as compared...

    Text Solution

    |

  10. The thermal energy developed in a current-carrying resistor is given b...

    Text Solution

    |

  11. Do "work done by the battery" and "the thermal energy developed"repres...

    Text Solution

    |

  12. Is work dome by a battery always equal to the thermal energy develop i...

    Text Solution

    |

  13. A nonideal battery is connected to a resistor. Is work done by thr bat...

    Text Solution

    |

  14. Sometimes it is said that "heat is developed" in a resistance when the...

    Text Solution

    |

  15. we often say "a current is going through the wire " What goes through ...

    Text Solution

    |

  16. Would you prefer a vlotmeter over a potentiomer to measure the emf of ...

    Text Solution

    |

  17. Does a conductor become charged when a current is passed through it?

    Text Solution

    |

  18. Can the potential difference across a battery be greater than its emf?

    Text Solution

    |