हिंदी

Give Three Reasons Why Different Electrical Appliances in a Domestic Circuit Are Connected in Parallel. - Science

Advertisements
Advertisements

प्रश्न

Give three reasons why different electrical appliances in a domestic circuit are connected in parallel.

Advertisements

उत्तर

Three reasons why a parallel circuit is used in domestic wiring:
(a) A parallel circuit has a low resistance.
(b) It prevents unequal power supply as opposed to a series circuit.
(c) If one device in the series is damaged, it does not affect the other devices.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 1: Electricity - Exercise 6

APPEARS IN

लखमीर सिंग Physics (Science) [English] Class 10
अध्याय 1 Electricity
Exercise 6 | Q 7

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

1 A = _________ mA

  1. 102
  2. 103
  3. 10-3
  4. 10-6

Which of the following equation shows the correct relationship between electrical unit? 

1A = 1C/s or 1c= 1A/s 


How many microamperes are there in 1 ampere?


A 5 V battery is connected to two 20 Ω resistors which are joined together in series.

(a) Draw a circuit diagram to represent this. Add an arrow to indicate the direction of conventional current flow in the circuit.
(b) What is the effective resistance of the two resistors?
(c) Calculate the current that flows from the battery?
(d) What is the p.d. across each resistor?


(a) With the help of a circuit diagram, obtain the relation for the equivalent resistance of two resistances connected in parallel.
(b) In the circuit diagram shown below, find:

(i) Total resistance.
(ii) Current shown by the ammeter 


A battery and three lamps are connected as shown: 

 

Which of the following statements about the currents at X, Y and Z is correct?
(a) The current at Z is greater than that at Y.
(b) The current at Y is greater than that at Z.
(c) The current at X equals the current at Y.
(d) The current at X equals the current at Z. 

 


Consider the circuit given below: 

 

(a) In which circuit are the lamps dimmest?
(b) In which circuit or circuits are the lamps of equal brightness to the lamps in circuit (i)?
(c) Which circuit gives out the maximum light?  


Calculate the effective resistance between the points A and B in the network shown below in Figure 8.45   


Calculate the equivalent resistance between A and B in the adjacent diagram.


Three resistors of 6.0 𝛀, 2.0𝛀 and 4.0𝛀 are joined to an ammeter A and a cell of e.m.f. 6.0 V as
shown in fig 8.52 Calculate:
(a) the effective resistance of the circuit and
(b) the reading of ammeter. 

 


What kind of plot would you except when current (I) is plotted against potential difference (V) for a conductor, at constant temperature?

Name the physical quantity which defines the rate of flow of charge.

A current of 0.3 A is flowing through a branch of 6 Ω resistors in a junction as shown in fig. . Calculate the
(a) P.d. across the junction XY,
(b) Current flowing through 9Ω and 24Ω
( c) P.d. across 24 Ω resistor, and
( d) e.m.f. of the cell.


Describe two experiments to illustrate the production of electric current by electromagnetic induction. State the laws which determine the direction and magnitude of the induced current.

Tick (✓) the correct choice among the following :
(a) A strong short bar magnet is dropped into a solenoid connected to a
galvanometer as shown in fig . The galvanometer shows a deflection to the left when the current in the coil as seen from above is counter clockwise. Which one of the following shows the correct deflection of the galvanometer when the magnet is at posi tions A, Band C.


An electric bulb is rated 250 W, 230 V. 

  1. the energy consumed in one hour, and
  2. the time in which the bulb will consume 1.0 kWh energy when connected to 230 V mains.

Explain, why the potential difference across the terminals of a cell is more when the cell is not in use than it is when the cell is being used.


Conventionally, the direction of the current is taken as:


What are the effects of electric current?


The number of electrons constituting a 1-coulomb charge is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×