English

Why is parallel arrangement used in domestic wiring? - Science

Advertisements
Advertisements

Question

Why is parallel arrangement used in domestic wiring?

Answer in Brief
Advertisements

Solution

Parallel arrangement is used in domestic wiring because of the following reasons -

  1.  Net resistance of the electric circuit decreases in parallel connection as compared to series connection due to which heat loss is reduced.
  2. Potential difference across each electrical device remains same i.e 220 V due to which all the electrical devices work upto their maximum potential.
  3. Each electrical device can be operated independently.
  4. If one electrical device stops working still other electrical devices continue to work properly. 
shaalaa.com
  Is there an error in this question or solution?
Chapter 12: Electricity - Short Answer Questions [Page 95]

APPEARS IN

NCERT Exemplar Science [English] Class 10
Chapter 12 Electricity
Short Answer Questions | Q 27. | Page 95

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

An electric heater is connected to the 230 V mains supply. A current of 8 A flows through the heater. 

(a) How much charge flows around the circuit each second?


Give two reasons why nichrome alloy is used for making the heating elements of electrical appliances.


The heat produced by passing an electric current through a fixed resistor is proportional to the square of:  

(a) magnitude of resistance of the resistor
(b) temperature of the resistor
(c) magnitude of current
(d) time for which current is passed


If the current flowing through a fixed resistor is halved, the heat produced in it will become:


Three heaters each rated 250 W, 100 V are connected in parallel to a 100 V supply. Calculate:

  1. the total current taken from the supply
  2. the resistance of each heater and
  3. the energy supplied in kWh to the three heaters in 5 hours.

Heat energy is being produced in a resistance in a circuit at the rate of 100 W. The current of 3 A is flowing in the circuit. What must be the value of the resistance?


Why does tungsten metal used to make solenoid type coil in an electric bulb?


These days when current in the circuit suddenly increases _______ switches are used.


Live wire and neutral wires have a 220 V potential difference.


Name any two appliances which work under the principle of heating effect of current.


A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through a cross-section of the filament in 16 seconds would be roughly:


What is Joule’s heating effect? How can it be demonstrated experimentally? List its four applications in daily life.


An electric fuse has a body made of ceramic and two points for connecting the fuse wire.


What are the factors affecting heating effect of electric current?


Copper wire offers very little ______ and does not get heated up quickly.


Name a few appliances which work on the basis of the heating effect of current.


An electrochemical cell converts ______ energy into ______ energy.


An electric iron is rated 220 V, 2 kW. If the iron is used for 3h daily find the cost of running it for one week if it costs ₹ 4.25 per kWh.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×