Home
Class 10
PHYSICS
A current of 200 mA flows through a 4 kO...

A current of 200 mA flows through a 4 kOhm resistor. What is the potential difference across the resistor?

Text Solution

Verified by Experts

The potential difference across the resistor
`V =IR`
`= 200 xx10^(-3) xx 4 xx 10^3`
`=800 V`
Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY

    KUMAR PRAKASHAN|Exercise VALUE BASED QUESTIN WITH ANSWERS|15 Videos

  • ELECTRICITY

    KUMAR PRAKASHAN|Exercise PRACTICAL SKILL BASED QUESTION WITH ANSWERS|20 Videos

  • ELECTRICITY

    KUMAR PRAKASHAN|Exercise OBJECTIVE QUESTIONS AND ANSWERS (Choose the correct option from those given below each question: )|55 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    KUMAR PRAKASHAN|Exercise VALUE BASED QUESTIONS WITH ANSWERS|15 Videos

Similar Questions

Explore conceptually related problems

400 J of heat is produced in 4 s in a 4.0ohm resistor. Find the potential difference across the resistor.

A potential difference of 10 V is needed to make a current of 0.02 A flow through a wire. What potential difference is needed to make a current of 250 mA to flow through the same wire?

100 J of heat is producec! in each second in a 4 Omega resistance. Find the potential difference across the resistor.

Draw the output waveform across the resistor.

If power dissipated in the 9 Omega resistor in the resistor shown is 36 W , the potential difference across the 2 Omega resistor is

A current of 2 A flows through a 2 Omega resistor when connected across a battery. The same battery supplies a current of 0.5 A when connected across a 9 Omega resistor. The internal resistance of the battery is

The values of current I flowing in for the corresponding values of potential difference V across the resistor are given below : Plot a graph between V and I and calculate the resistance of that resistor.

When a current of (5 +- 0.5)A flows through a wire, it develops a potential difference of (40 +- 1)V . The resistance of the wire is ......

Magnetic flux of 10 mu Wb is linked with a coil, when a current of 2 mA flows through it. What is the self inductance of the coil?

KUMAR PRAKASHAN-ELECTRICITY-OBJECTIVE QUESTIONS AND ANSWERS (Answer the following questions as directed (Miscellaneous):)
  1. Keeping the potential difference constant, the resistance of a circuit...

    Text Solution

    |

  2. A potential difference of 10 V is needed to make a current of 0.02 A f...

    Text Solution

    |

  3. A current of 200 mA flows through a 4 kOhm resistor. What is the poten...

    Text Solution

    |

  4. The electrical resistivities of four materials A, B, C and D are given...

    Text Solution

    |

  5. The equivalent resistance of a series combination of two resistors is ...

    Text Solution

    |

  6. An electric lamp is labelled 12 V, 36 W. This indicate that it should ...

    Text Solution

    |

  7. Name two devices whose working is based on the heating effect of elect...

    Text Solution

    |

  8. Name the gases which are filled into the filament-type electric light ...

    Text Solution

    |

  9. Why are the filament-type electric light bulbs not power efficient?

    Text Solution

    |

  10. Under what conditions is the Ohm.s law applicable?

    Text Solution

    |

  11. Why is Nichrome used as a heating element?

    Text Solution

    |

  12. Why are Constantan and Manganin used for making standard resistors?

    Text Solution

    |

  13. Why is lead-tin alloy used for making a fuse?

    Text Solution

    |

  14. What is the difference between a resistor ~ and resistance?

    Text Solution

    |

  15. What do you mean by the term load in an electric circuit?

    Text Solution

    |

  16. How does the current divide itself in a parallel combination of resist...

    Text Solution

    |

  17. How does the potential difference divide itself in a series combinatio...

    Text Solution

    |

  18. How is heat produced in a conductor by an electric current?

    Text Solution

    |

  19. If a number of bulbs of different wattages are joined in parallel With...

    Text Solution

    |

  20. Which bulb will glow With maximum brightness in case bulbs of differen...

    Text Solution

    |