मराठी
महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Complete the Following

Advertisements
Advertisements

प्रश्न

Complete the following :-

(c)

Advertisements

उत्तर

(c)

`"The equivalent resistance is "R_(eq)=2+(1/2+1/2)=2+2/2=2+1=3Omega`

 

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2014-2015 (March)

APPEARS IN

संबंधित प्रश्‍न

Complete the following :-

(b)


A hot plate of an electric oven connected to a 220 V line has two resistance coils A and B, each of 24 Ω resistances, which may be used separately, in series, or in parallel. What are the currents in the three cases?


Which of the following arrangement, A or B, has the lower combined resistance? 


How will you connect three resistors of resistances 2 Ω, 3 Ω, and 6 Ω to obtain a total resistance of  4 Ω, and  1 Ω?


If current flows through two lamps arranged: 

(a) in series,
(b) in parallel,
and the filament of one lamps breaks, what happens to the other lamp? Explain your answer.


State how are the two resistors joined with a battery when equivalent resistance is less than either of the two resistances.


In parallel combination of resistances ______.


Five resistors, each 3 Ω, are connected as shown in Fig. Calculate the resistance

  1. between the points P and Q.
  2. between the points X and Y.  

 


A particular resistance wire has a resistance of 3 ohm per meter. Find the total resistance of three lengths of this wire each 1.5 m long, joined in parallel.


What is the equivalent resistance of 5 equal resistors, each of value 2`Omega` 1 when oonnected in (a) Series  ( b) ParaIleI?


Tick (✓) the correct choice among the following :

Consider two cases of two parallel current carrying conductors. Current in
th e same direction and currents in th e opposi te directions will produce


Solve the following question:
In an electric circuit, two resistors of 12 0 each are joined in parallel to a 6 V battery. Find the current drawn from the battery.


How does the resistance of a metallic wire depend on the length of wire?


A piece of wire having a resistance R is cut into five equal parts.

  1. How will the resistance of each part of the wire change compared with the original resistance?
  2. If the five parts of the wire are placed in parallel, how will the resistance of the combination change?
  3. What will be ratio of the effective resistance in series connection to that of the parallel connection?

Two devices are connected between two points say A and B in parallel. The physical quantity that will remain the same between the two points is:


You are given four ammeters A, B, C and D having the least counts mentioned below:

(I) Ammeter A with least count 0.25 A

(II) Ammeter B with least count 0.5 A

(III) Ammeter C with least count 0.05 A

(IV) Ammeter D with least count 0.1 A

Which of the ammeters would you prefer for doing an experiment to determine the equivalent resistance of two resistances most accurately, when connected in parallel?


Three resistors of 6Ω, 4Ω and 4Ω are connected together so that the total resistance is 8Ω. Draw a diagram to show this arrangement and give reason to justify your answer.


Two resistors having resistance 8 Ω and 12 Ω are connected in parallel. Find their equivalent resistance.


A particular resistance wire has a resistance of 3·0 ohm per metre. Find the resistance of 5 m length of a wire of the same material, but with twice the area of cross section.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×