Home
Class 12
PHYSICS
Three electric bubls of 200W, 200 W and ...

Three electric bubls of 200W, 200 W and 400W are shown in figure. The resultant power of the combination is

A

800 W

B

400 W

C

200 W

D

600 W

Text Solution

Verified by Experts

The correct Answer is:
C
`P_(eff) = ((200 +200)xx 400)/((200 + 200) + 400) = (400 xx 400)/(400 + 400) = 200 W`
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    ERRORLESS|Exercise PAST YEARS QUESTIONS |76 Videos

  • CURRENT ELECTRICITY

    ERRORLESS|Exercise ASSERTION AND REASON|26 Videos

  • CURRENT ELECTRICITY

    ERRORLESS|Exercise NCERT BASED QUESTIONS (DIFFERENT MEASURING INSTRUMENTS) |74 Videos

  • ATOMIC AND NUCLEAR PHYSICS

    ERRORLESS|Exercise Assertion and Reason|23 Videos

  • ELECTROMAGNETIC INDUCTION

    ERRORLESS|Exercise ASSERTION & REASON|20 Videos

Similar Questions

Explore conceptually related problems

Three electric bulbs of 200 W and 400 W are shown in figure. The resultant power of the combination if rated voltage is applied across the combination is (50x) Watt. Find value of x.

Three electric bulbs of 200 W, 200 W and 400 W are connected as shown in figure. The resultant power of the combination is

If three bulbs 60 W , 100 W and 200 W are connected in parallel, then

An electric bulb marked as 50 W-200 V is connected across a 100 V supply. The present power of the bulb is

Three electric bulbs of rating 60 W each are joined in series and then connected to electric mains. The power consumed by these three bulbs will be

Three electric bulbs with markings 100 V-150 W, 100V-400W and 100V-500W are connected in series along power supply of 100V. Calculate the current in the circuit through each bulb.

A 220 V and 800 W electric kettle and three 220 V and 100 W bulbs are connected in parallel. On connecting this combination with 200 V supply, the total currentin the circuit will be

When three identical bulbs of 60 W, 200 V rating are connected in series to a 200 V supply, the power drawn by them will be

ERRORLESS-CURRENT ELECTRICITY-NCERT BASED QUESTIONS (HEATING EFFECT OF CURRENT)
  1. An electric motor operator on 15 V supply, draws a current of 5 A and ...

    Text Solution

    |

  2. A heater is designed to operate with a power of 1000W in a 100 V line....

    Text Solution

    |

  3. A resistor R(1) dissipates the power P when connected to a certain gen...

    Text Solution

    |

  4. Two identical heaters rated 220 V , 1000 W are paced in series with ea...

    Text Solution

    |

  5. Two bulbs of 100 W and 200 W working at 220 volt are joined in series ...

    Text Solution

    |

  6. Three electric bulbs of rating 60 W each are joined in series and then...

    Text Solution

    |

  7. Three electric bubls of 200W, 200 W and 400W are shown in figure. The ...

    Text Solution

    |

  8. When two resistances R1 and R2 are connected in series , they consume...

    Text Solution

    |

  9. Three equal resistor connected in series across a source of enf toget...

    Text Solution

    |

  10. Two electric bulbs marked 40W, 220V and 60W, 220V when connected in se...

    Text Solution

    |

  11. A 5^(@)C rise in the temperature is observed in a conductor by passing...

    Text Solution

    |

  12. A 12 V lead accumulator is being charged using 24 V supply with an ext...

    Text Solution

    |

  13. A coil takes 15 min to boil a certain amount of water, another coil ta...

    Text Solution

    |

  14. An electric kettle has two heating coils. When one coil is used, water...

    Text Solution

    |

  15. An immersion heater is rated 836 watt . It should heat 1 litre of wate...

    Text Solution

    |

  16. A wire of length L and 3 identical cells of negligible internal resist...

    Text Solution

    |

  17. A coil of wire of resistance 50 Omega is embedded in a block of ice. I...

    Text Solution

    |

  18. Flash light equipped with a new set of batteries, produces bright whit...

    Text Solution

    |

  19. The material of fuse wire should should have

    Text Solution

    |

  20. A fuse wire with radius 1 mm blows at 1.5 amp . The radius of the fuse...

    Text Solution

    |