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Why is the series arrangement not used for domestic circuits?

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प्रश्न

Why is the series arrangement not used for domestic circuits?

थोडक्यात उत्तर
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उत्तर

Series connections are not used in domestic electrical circuits due to the following reasons:

  1. It cannot be used with different devices (devices) with different switches on and off. If one equipment fails, the other also stops working.
  2. In series connection, the same current flows through all the devices, which we do not need.
  3. Due to high total resistance of the circuit (R = R1 + R2 + ...), the value of current becomes extremely low.
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पाठ 11: Electricity - EXERCISE [पृष्ठ १९४]

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एनसीईआरटी Science [English] Class 10
पाठ 11 Electricity
EXERCISE | Q 18. (c) | पृष्ठ १९४

संबंधित प्रश्‍न

Judge the equivalent resistance when the following are connected in parallel − (a) 1 Ω and 106Ω, (b) 1 Ω and 103Ω and 106Ω.


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(i) Two sets A and B, of three bulbs each, are glowing in two separate rooms. When one of the bulbs in set A is fused, the other two bulbs also cease to glow. But in set B, when one bulb fuses, the other two bulbs continue to glow. Explain why this phenomenon occurs.

(ii) Why do we prefer arrangements of Set B for house circuiting?


The substance having infinitely high electrical resistance is called:

(a) conductor
(b) resistor
(c) superconductor
(d) insulator


How does the resistance of a wire change when: 

 its length is tripled? 


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If this arrangement of three resistors was to be replaced by a single resistor, its resistance should be:
 
(a) 9 Ω
(b) 4 Ω
(c) 6 Ω
(d) 18 Ω


 


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State how are the two resistors joined with a battery when same current flows in each resistor.


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Three resistors of 6.0 Ω, 2.0 Ω and 4.0 Ω are joined to an ammeter A and a cell of emf 6.0 V as shown in the following figure. Calculate :

  1. the effective resistance of the circuit.
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What material is used for making wire to prepare heating coils? Give a reason.


How does the resistivity of an alloy such as constantace depends on temperature.


State expression for Resistance connected in parallel.


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What is the maximum resistance which can be made using five resistors each of `1/5` W?


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