Question
What will be the value of maximum and minimum capacitances oblained from the combinations of three capacitors. each of which has a capacitance of $6 \mu F$ ?
✓
Answer
Maximum capacitance $=6 \mu F+6 \mu F+6 \mu F$ $ =18 \mu F $
Minimum capacitance $ \begin{array}{l} \frac{1}{C}=\frac{1}{6}+\frac{1}{6}+\frac{1}{6}=\frac{3}{6}=\frac{1}{2} \\ C=2 \mu F \end{array} $
Minimum capacitance $ \begin{array}{l} \frac{1}{C}=\frac{1}{6}+\frac{1}{6}+\frac{1}{6}=\frac{3}{6}=\frac{1}{2} \\ C=2 \mu F \end{array} $
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Two persons pull a rope towards themselves. Each person exerts a force of 100N on the rope. Find the Young's modulus of the material of the rope if it extends in length by 1cm. Original length of the rope = 2m and the area of cross-section = 2cm2.
Write any two examples of paramagnetic substances.
Water is slowly coming out from a vertical pipe. As the water descends after coming out, its area of cross-section reduces. Explain this on the basis of the equation of continuity.
Can a hot-wire ammeter be used to measure a direct current having a constant value? Do we have to change the graduations?
Calculate the potential at a point located at a distance $9 \times 10^{-2} m$ due to charge $4 \times 10^{-9} C$
→Two parallel wires are located very close to each other. The upper wire is fixed and the lower is free. What should be direction of current of suitable magnitude in both wires to stop the free wire? Give reason also.
A light ray is incident perpendicularly on a plane mirror. What will be the values of angle of incidence and angle of reflection?
Predict the directions of induced currents in metal rings 1 and 2 lying in the same plane where current I in the wire is increasing steadily.
The graph shows the variation of voltage ‘V’ across the plates of two capacitors A and B versus increase of charge ‘Q’ stored on them. Which of the two capacitors has higher capacitance? Give reason for your answer.
When a straight wire of resistance R is bent into U-shape, does its resistance change?