Advertisements
Advertisements
प्रश्न
Calculate the equivalent resistance between the points A and B for the following combination of resistors:
Advertisements
उत्तर
`1/("R"_1') = 1/12 + 1/4 + 1/6 = (1 + 3 + 2)/12 = 6/12`
`1/("R"_1') = 1/2`
R1' = 2 Ω
Total resistance = 5 + 2 + 6 = 13 ohm.
संबंधित प्रश्न
In series combination which remains constant?
(a) Voltage
(b) Current
(c) Both current and voltage
(d) Both are variables
Why is the series arrangement not used for domestic circuits?
The V-I graph for a series combination and for a parallel combination of two resistors is shown in the figure below. Which of the two A or B. represents the parallel combination? Give reasons for your answer.
Bends in a rubber pipe reduce the flow of water through it. How would the bands in a wire affect its electric resistance?
Six resistances are connected together as shown in the figure. Calculate the equivalent resistance between points A and B.
Three resistors of 6Ω, 3Ω and 2Ω are connected together so that their total resistance is greater than 6Ω but less than 8Ω Draw a diagram to show this arrangement and calculate its total resistance.
What is the equivalent resistance between the points X and Y for the given network?
A metal wire of resistance 6 Ω is stretched so that its length is increased to twice its original length. Calculate its new resistance.
Two electric bulbs have resistances in the ratio 1 : 2. If they are joined in series, the energy consumed in them is in the ratio:
