Home
Class 12
PHYSICS
What is wattless current?...

What is wattless current?

Text Solution

Verified by Experts

A component of current that does not allow the circuit elements like capacitors and inductors to dissipate energy in them is called as wattless current
Promotional Banner

Topper's Solved these Questions

  • SUPER MODEL QUESTION PAPER -5

    SUBHASH PUBLICATION|Exercise PART -D|8 Videos

  • SUPPLEMENTARY EXAMINATION QUESTION PAPER (WITH ANSWER) JULY-2018

    SUBHASH PUBLICATION|Exercise PART-D|12 Videos

Similar Questions

Explore conceptually related problems

In a series LCR circuit, obtain the conditions under which (i) the impedance of the circuit is minimum , and (ii) wattless current flows in the circuit.

The alternating current is given by I=I_1 cos omega t + I_2 sin omega t . What is the rms current in the circuit ?

What is an elecric current? Write its SI unit.

(a) The peak voltage of an ac supply is 300 V. What is the rms voltage? (b) The rms value of current in an ac circuit is 10 A. What is the peak current?

What is the net current in a p-n junction under equilibrium?

SUBHASH PUBLICATION-SUPPLEMENTARY EXAM QUESTION PAPER JUNE 2018-QUESTION
  1. State Lenz's law.

    Text Solution

    |

  2. Write the condition for .resonance. of series LCR circuit.

    Text Solution

    |

  3. What is wattless current?

    Text Solution

    |

  4. A blue ray of light enters an optically denser medium from air. What h...

    Text Solution

    |

  5. ""(92)U^(238) undergoes alpha-decay giving rise to thorium. What is th...

    Text Solution

    |

  6. Represent graphically the variation of resistivity with absolute tempe...

    Text Solution

    |

  7. Write an expression for cyclotron frequency and explain the terms .

    Text Solution

    |

  8. State and explain 'Curie's Law' in magnetism .

    Text Solution

    |

  9. Mention any two factors on which the self inductance of a coil depends...

    Text Solution

    |

  10. Give any two applications of ultraviolet radiations.

    Text Solution

    |

  11. What is polarisation of light ? Name any one method of producing plane...

    Text Solution

    |

  12. Calculate de Broglie wavelength associated with an electron moving wit...

    Text Solution

    |

  13. Write any two advantages of Light Emitting Diode (LED) over convention...

    Text Solution

    |

  14. Write any three properties of magnetic field lines.

    Text Solution

    |

  15. Obtain an expression for effective Capacitance of two Capacitors Conne...

    Text Solution

    |

  16. Distinguish between diamagnetic and paramagnetic substances.

    Text Solution

    |

  17. Describe the coil and barmagnet experiment to demonstrate the phenomen...

    Text Solution

    |

  18. Derive the expression for effective focal length of two thin lenses ke...

    Text Solution

    |

  19. Write any three experimental observations of photoelectric effect

    Text Solution

    |

  20. Explain the working of a zener diode as a voltage regulator.

    Text Solution

    |