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Show with the Help of Diagrams, How You Would Connect Three Resistors Each of Resistance 6 ω, So that the Combination Has Resistance of (I) 9 ω (Ii) 4 ω. - Science

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प्रश्न

Show with the help of diagrams, how you would connect three resistors each of resistance 6 Ω, so that the combination has resistance of (i) 9 Ω (ii) 4 Ω.

उत्तर

To obtain 9 Ω and 4 Ω , we should connect the resistors as follows: 

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अध्याय 1: Electricity - Exercise 5

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लखमीर सिंग Physics (Science) [English] Class 10
अध्याय 1 Electricity
Exercise 5 | Q 43

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संबंधित प्रश्न

Show how would you join three resistors, each of resistance 9 Ω so that the equivalent resistance of the combination is 

1) 13.5 

2) 6 Ω


Show how you would connect two 4 ohm resistors to produce a combined resistance of (a) 2 ohms (b) 8 ohms.


A resistor has a resistance of 176 ohms. How many of these resistors should be connected in parallel so that their combination draws a current of 5 amperes from a 220 volt supply line?


 Explain with the help of a labelled circuit diagram, how you will find the resistance of a combination of three resistors of resistances R1, R2 and R3 joined in parallel.


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 battery of e.m.f 16 V and internal resistance 2 Ω is connected to two resistors 3Ω and 6Ω connected in parallel. Find:

  1. the current through the battery.
  2. p.d. between the terminals of the battery,
  3. the current in 3 Ω resistors,
  4. the current in 6 Ω resistor. 

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.


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Reason: In a short circuit, the current is zero.


The diagram above is a schematic diagram of a household circuit. The house shown in the above diagram has 5 usable spaces where electrical connections are made. For this house, the mains have a voltage of 220 V and the net current coming from the mains is 22A.

  1. What is the mode of connection to all the spaces in the house from the mains?
  2. The spaces 5 and 4 have the same resistance and spaces 3 and 2 have respective resistances of 20Ω and 30Ω. Space 1 has a resistance double that of space 5. What is the net resistance for space 5.
  3. What is the current in space 3?
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