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प्रश्न
Four resistances of 2.0Ω each are joined end to end, to form a square ABCD. Calculate the equivalent resistance of the combination between any two adjacent comers.
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उत्तर
The diagram indicates a square ABCD formed by joining four resistances of 2Ω each, end to end.
Let us calculate the equivalent resistance of the combination B between the two adjacent comets C and D.
From given figure, arms DA, AB and BC are joined in series.
So, their equivalent of 6Ω and 2Ω are in parallel.
∴ The equivalent resistance of the combination is R.
Then, `1/"R" = 1/6 + 1/2 = 4/6 = 2/3`
∴ R = `3/2` Ω
= 1.5 Ω
संबंधित प्रश्न
Complete the following :-
(a)
Find the equivalent resistance between points A and B
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(ii) Why do we prefer arrangements of Set B for house circuiting?
The substance having infinitely high electrical resistance is called:
(a) conductor
(b) resistor
(c) superconductor
(d) insulator
How does the resistance of a pure metal change if its temperature decreases?
Two resistances X and Y are connected turn by turn:
- in parallel, and
- in series.
In which case the resultant resistance will be less than either of the individual resistances?
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Write an expression for calculating electrical power in terms of current and resistance.
In an electrical circuit, two resistors of 2 Ω and 4 Ω respectively are connected in series to a 6 V battery. The heat dissipated by the 4 Ω resistor in 5 s will be ______.
