SATHEE: Electrostatics 6 Question 2

Electrostatics 6 Question 2

2. Find the time constant for the given $R C$ circuits in correct order (in $μ s$ ).

$(2006, 3 M)$

$R_{1} = 1 Ω, R_{2} = 2 Ω, C_{1} = 4 μ F, C_{2} = 2 μ F$ .

(a) $18, 4, 8 / 9$

(b) $18, 8 / 9, 4$

(d) $4, 8 / 9, 18$

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Answer:

Correct Answer: 2. (b)

Solution:

$\begin{aligned} τ & = C R \\ τ_{1} & = (C_{1} + C_{2}) (R_{1} + R_{2}) = 18 μ s \\ τ_{2} & = \frac{C_{1} C_{2}}{C_{1} + C_{2}} \frac{R_{1} R_{2}}{R_{1} + R_{2}} = \frac{8}{6} \times \frac{2}{3} = \frac{8}{9} μ s \\ τ_{3} & = (C_{1} + C_{2}) \frac{R_{1} R_{2}}{R_{1} + R_{2}} = (6) \frac{2}{3} = 4 μ s \end{aligned}$

Electrostatics 6 Question 2

2. Find the time constant for the given $R C$ circuits in correct order (in $μ s$ ).

Answer:

Solution:

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Electrostatics 6 Question 2

2. Find the time constant for the given RC circuits in correct order (in μs ).

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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2. Find the time constant for the given $R C$ circuits in correct order (in $μ s$ ).