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प्रश्न
Find the equivalent resistance between points A and B.
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उत्तर
Given: \(R_1=2\,\Omega\)
\(R_2=12\,\Omega\)
\(R_3=6\,\Omega\)
\(R_4=5\,\Omega\)
The 12 Ω and 6 Ω resistors are connected in parallel.
\[ R_p=\frac{12\times6}{12+6}\]
\[=\frac{72}{18}\]
\[ =4\,\Omega \]
This combination is in series with 2 Ω and 5 Ω resistors.
\[ R=2+4+5 \]
\[ {R=11\,\Omega} \]
Equivalent resistance between A and B:
\[ {R=11\,\Omega} \]
संबंधित प्रश्न
Complete the following :-
(a)
Judge the equivalent resistance when the following are connected in parallel − (a) 1 Ω and 106Ω, (b) 1 Ω and 103Ω and 106Ω.
Find the equivalent resistance between A and B
How does the resistance of a wire change when:
its diameter is tripled?
A p.d. of 4 V is applied to two resistors of 6 Ω and 2 Ω connected in series. Calculate:
(a) the combined resistance
(b) the current flowing
(c) the p.d. across the 6 Ω resistor
If two resistors of 25 Ω and 15 Ω are joined together in series and then placed in parallel with a 40 Ω resistor, the effective resistance of the combination is :
(a) 0.1 Ω
(b) 10 Ω
(c) 20 Ω
(d)40 Ω
To increase the effective resistance in a circuit, the resistors are connected in _______________ .
What is a resistance? Define it with respect to Ohm’s law,
Show how you would connect three resistors, each of resistance 6 Ω, so that the combination has a resistance of 4 Ω.
