Home
Class 12
PHYSICS
Assertion: AC is more dangerous than DC ...

Assertion: `AC` is more dangerous than `DC`
Reason: Frequency of `AC` is dangerous for humban body.

A

If both the assertion and reason are true and reason is a true explantion of the assertion.

B

If both the assertion and reason are true but the reason is not true the correct explantion of the assertion.

C

If the assertion is true but reason false

D

If both the assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A

The effect of `AC` on the body depends largely on the frequency. Low frequency currents of `50` to `60 Hz`(cycles/sec), which are commonly used, are usually more dangerous than high frequency currents and are `3` to `5` times more dangerous than `DC` of same voltage and amperage (current). The usual frequency of `50`cps (or `60` cps) is extermely dangerous as it corresponds to the fibrillation frequency of the myocardium. This results in ventricular fibrillation and instant death
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    A2Z|Exercise AIPMT/NEET Questions|31 Videos
  • ALTERNATING CURRENT

    A2Z|Exercise AIIMS Questions|26 Videos
  • ALTERNATING CURRENT

    A2Z|Exercise Problems Based On Mixed Concepts|40 Videos
  • ATOMIC PHYSICS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

Frequency of A.C. in India is-

Hepatitis B is more dangerous than Hepatitis A.

The frequency of AC mains in India is

A high fever is dangerous to human body because it

(a) Which is more dangerous: AC or DC? (b) Why so?

220 volt a.c. is more dangerous than 220 volt d.c why?

Assertion: Ultraviolet radiation are of higher frequency waves are dangerous to huhman beaing. Reasion: Ultraviolet radiation are absorbed by the atmosphere

A2Z-ALTERNATING CURRENT-Section B - Assertion Reasoning
  1. Assertion: AC generators are based upon EMI principle. Reason: Resis...

    Text Solution

    |

  2. Assertion: Rate of heat generated when resistance is connected with AC...

    Text Solution

    |

  3. An inductor, a capacitor, and a resistor are connected in series. The ...

    Text Solution

    |

  4. Asserition: In alternating current direction of motion free electron c...

    Text Solution

    |

  5. Assertion: When frequency is greater than resonace frequency is a seri...

    Text Solution

    |

  6. Assertion: When capacitive reactance is smaler than the inductive reac...

    Text Solution

    |

  7. Statement 1: An alternating current shown magnetic effect. Statemen...

    Text Solution

    |

  8. Assertion: The alternating current lags behined the e.m.f. by a phase ...

    Text Solution

    |

  9. Assertion: Capacitance serves as a block for DC and offers an easy pat...

    Text Solution

    |

  10. Assertion: When capacitive reactance is smaler than the inductive reac...

    Text Solution

    |

  11. Assertion: Chock coil is the prefered over a resistor to adjust curren...

    Text Solution

    |

  12. Statement 1: An alternating current shown magnetic effect. Statemen...

    Text Solution

    |

  13. Statement 1: Both dc and ac can be measured by a hot wire instrument. ...

    Text Solution

    |

  14. Assertion: AC is more dangerous than DC Reason: Frequency of AC is ...

    Text Solution

    |

  15. Assertion: Average value of AC over a complete cycle is always zero. ...

    Text Solution

    |

  16. Assertion: The division are equaly marked on the scale of AC ammeter. ...

    Text Solution

    |

  17. Assertion: When AC circuit contain resistor only, its power is minimum...

    Text Solution

    |

  18. Assertion: An electric lamp connected in series with a variable capaci...

    Text Solution

    |

  19. Assertion: An inductance and a resistance are connected in series with...

    Text Solution

    |

  20. Assertion: A capacitor of suitable capacitance can be used in an AC ci...

    Text Solution

    |