Home
Class 12
PHYSICS
A 40Omega electric heater is connected t...

A `40Omega` electric heater is connected to a 200 V , 50 Hz mains supply. The peak value of electric current flowing in the circuit is approximately

A

`2.5 A`

B

`5.0 A`

C

7A

D

10A

Text Solution

Verified by Experts

`i_(ems) = (200)/(40) = 5 A`
`i_(0) = sqrt2 i _(rms) = 5 sqrt2 A`
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |8 Videos

  • ALTERNATING CURRENT

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |8 Videos

  • CURRENT ELECTRICITY

    PHYSICS WALLAH|Exercise NEET Past 5 Years Questions|23 Videos

Similar Questions

Explore conceptually related problems

A 40Omega electric heater is connected to a 200V, 50Hz main supply. The peak value of electric current flowing in the circuit is approx.

A 50 Omega electric heater is connected to 100 V. 60 Hz ac sinusoidal supply.

A 44 mH inductor is connected to 220 V, 50 Hz ac supply. The rms value of the current in the circuit is

A 30 mu F capacitor is connected to a 150 V, 60 Hz ac supply. The rms value of current in the circuit is

A 44 mH inductor is connected to 220 V, 50 Hz a.c. supply. Determine rms value of current in the circuit.

An inductor of 1 henry is connected across a 220 v, 50 Hz supply. The peak value of the current is approximately.

A 40 micro F capacitor is connected to a 200V, 50 Hz ac supply. Rms value of current in circuit is nearly

PHYSICS WALLAH-ALTERNATING CURRENT -LEVEL - 2
  1. An AC voltage is given by E=E(0) sin(2pit)/(T). Then the mean value of...

    Text Solution

    |

  2. An AC voltage of V=220sqrt2 sin (100pit+(pi)/(2))V is applied across a...

    Text Solution

    |

  3. A 40Omega electric heater is connected to a 200 V , 50 Hz mains supply...

    Text Solution

    |

  4. The potential difference V across and the current I flowing through an...

    Text Solution

    |

  5. A direct current of 2 A and an alternating current having a maximum va...

    Text Solution

    |

  6. A sinusoidal ac current flows through a resistor of resistance R . If ...

    Text Solution

    |

  7. A conductor of capacity 1pF is connected to an A.C source of 220 V and...

    Text Solution

    |

  8. The self-inductance of a choke coil is 10mH. When it is connected with...

    Text Solution

    |

  9. A coil of inductance 5.0 mH and negligible resistance is connected to ...

    Text Solution

    |

  10. A 100 volt AC source of angular frequency 500 rad/s is connected to a ...

    Text Solution

    |

  11. A condenser of 10muF and an inductor of 1.2H are connected in series w...

    Text Solution

    |

  12. In an ac circuit the potential differences across an inductance and re...

    Text Solution

    |

  13. A coll has an inductance of (2.2)/(pi)H and is joined m series with a ...

    Text Solution

    |

  14. A resistor and a capacitor are connected to an ac supply of 200 V, 50 ...

    Text Solution

    |

  15. The impedance of a series circuit consists of 3 ohm resistance and 4 o...

    Text Solution

    |

  16. An electric bulb and a capacitor are connected in series with an AC so...

    Text Solution

    |

  17. In an LCR series circuit the rms voltages across R L and C are found...

    Text Solution

    |

  18. In an LCR circuit, the capacitance is made one-fourth, when in resonan...

    Text Solution

    |

  19. A resistor R, an inductor L and a capacitor C are connected in series ...

    Text Solution

    |

  20. A power transformer (step up) with an 1:8 turns ratio has 60 Hz,120 V ...

    Text Solution

    |