Take Class 12 Tuition from the Best Tutors
Affordable fees 1-1 or Group class Flexible Timings Verified Tutors Search in
(a) What is the total capacitance of the combination?
(b) What is the potential difference across each capacitor if the combination is connected to a 120 V supply?
Asked by Pratik Last Modified
Answer 
Apoorva Purohit
(a) Capacitance of each of the three capacitors, C = 9 pF
Equivalent capacitance (C’) of the combination of the capacitors is given by the relation,
1C'=1C+1C+1C⇒1C'=19+19+19=13⇒C'=3 pF
Therefore, total capacitance of the combination is 3 pF
.
(b) Supply voltage, V = 120 V
Potential difference (V') across each capacitor is equal to one-third of the supply voltage.
Therefore, the potential difference across each capacitor is 40 V.
read less Shivank Sharma
Engineer and a civil services exam aspirant.
The capacitance of each of three capacitors =9pf
(a) equivalent capacitance= C'
1/C'= 1/C1 + 1/C2 + 1/C3
= 1/9 + 1/9 + 1/9
1/C' = 3/9
C' = 3pf
(b) supply voltage (V)=120V
potential difference across each capacitor is 1/3rd of supply voltage.
i.e. V'= V/3
V' = 120/3
V' = 40 volts
V' = 40 volts
read less P Rahul Rahul
POST GRADUATE IN EEE, NOT HAVING EXPERIENCE IN TEACHING BUT HAVE EXPERIENCE IN PROBLEM SOLVING
a) Answer is 3pf because as the capacitors are connected in series. The formula is when there are 'n' identical capacitors each are having m' farads. Then the shortcut answer is m/n.for detailed explanation I will tell u when we come across together in sharing of knowledge
(b). the Answer is 40v.as the capacitors are identical and are in series the voltage across them will divide equally.
(b). answer is 40v.as the capacitors are identical and are in series the voltage across them will divide equally.
read less Gourab Saha
Clear Your Concepts and Score Higher
The capacitance of each of three capacitors =9pf(a) equivalent capacitance(C')
1/C'= 1/C1 + 1/C2 + 1/C3 = 1/9 + 1/9 + 1/9
1/C' = 3/9
C' = 3pf
(b) supply voltage (V)=120Vpotential difference across each capacitor is 1/3rd of supply voltage.i.e. V'= V/3
V' = 120/3
V' = 40 volts
V' = 40 volt
Given, C1 = C2 = C3 = 9 pF = 9 x 10-12 F
V = 120 volt
a) Total capacitance of the series combination is given by
⇒ 
⇒ 
Cnet = 3 x 10-12 F = 3 pico-Farad.
(b) Let q be the charge on each capacitor.
Sum of the potential difference across the plates of the three capacitors must be equal to 120 V
⇒ V1 + V2 + V3 = Vnet
⇒ 
(∵ Vnet = 120 V)
⇒ 
⇒ 
⇒ q = 360 x 10-12 C
Therefore, potential difference across a capacitor
read less
View 4 more Answers
Related Questions
(a) Inside the sphere
(b) Just outside the sphere
(c) At a point 18 cm from the centre of the sphere?
(a) What is the total capacitance of the combination?
(b) Determine the charge on each capacitor if the combination is connected to a 100 V supply.
Two charges 5 × 10−8 C and −3 × 10−8 C are located 16 cm apart. At what point(s) on the line joining the two charges is the electric potential zero? Take the potential at infinity to be zero.
Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com
Ask a QuestionRecommended Articles
Meet Radhe Shyam Burman, an MBA Tutor from...
Radhe Shyam is a highly skilled accounts and finance trainer with 8 years of experience in teaching. Accounting is challenging for many students and that’s where Radhe Shyam’s expertise comes into play. He helps his students not only in understanding the subject but also advises them on how to overcome the fear of accounts...
Read full article >
Meet Swati, a Hindi Tutor from Bangalore
Swati is a renowned Hindi tutor with 7 years of experience in teaching. She conducts classes for various students ranging from class 6- class 12 and also BA students. Having pursued her education at Madras University where she did her Masters in Hindi, Swati knows her way around students. She believes that each student...
Read full article >
Meet Urmila, an MBBS tutor from Bangalore
Urmila is a passionate teacher with over 8 years of experience in teaching. She is currently pursuing her Ph. D. She provides classes for Class 11, Class 12, MBBS and Medical tuition. Urmila began her career in teaching long before she became a teacher. She used to provide classes for foreign national students in her college...
Read full article >
Meet Raghunandan.G.H, a B. Tech Tutor from...
Raghunandan is a passionate teacher with a decade of teaching experience. Being a skilled trainer with extensive knowledge, he provides high-quality BTech, Class 10 and Class 12 tuition classes. His methods of teaching with real-time examples makes difficult topics simple to understand. He explains every concept in-detail...
Read full article >
Looking for Class 12 Tuition ?
Learn from the Best Tutors on UrbanPro
Are you a Tutor or Training Institute?
Join UrbanPro Today to find students near youThe best tutors for Class 12 Tuition Classes are on UrbanPro
The best Tutors for Class 12 Tuition Classes are on UrbanPro
5
