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    • Posted by Dadan Seth917 2 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Anshul Raj 2 years ago

    According to Krichoff's law good absorbers are good emitters of heat

    0Thank You

    Devanshoo Tekade 2 years ago

    There are two types of Rules, Junction Rule state's that at any function the sum of forces of current entering the junction is equal to sum of currents leaving the junction. Loop Rule state's that The algebraic sum of charges of potential around any closed loop involving resistors and cells in the loop is 0.

    0Thank You

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    • Posted by Jyoti Shinde 2 years ago

    CBSE > Class 12 > Physics
    • 3 answers

    Sachidanand Singh 1 year, 11 months ago

    55/1/1

    1Thank You

    Ayush Mishra 1 year, 11 months ago

    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

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    0Thank You

    Kundan Yadav 2 years ago

    Sir mai topic for this chapter Please help me

    5Thank You

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    • Posted by Sonu Thakur 2 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Saurabh Yadav 2 years ago

    Right

    1Thank You

    Aarzoo Saini 2 years ago

    According to Coulomb's law, the force of attraction or repulsion between two charged bodies is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

    2Thank You

    ANSWER

    • Posted by Shubhamtiwari Tiwari 1 year, 11 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Preeti Dabral 1 year, 11 months ago

    Self-inductance is the property of the current-carrying coil that resists or opposes the change of current flowing through it. This occurs mainly due to the self-induced emf produced in the coil itself.

    0Thank You

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    • Posted by Harpreet Dhiman 2 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Ayush Mishra 2 years ago

    Tell your full question on Instagram so give me your Instagram id

    0Thank You

    ANSWER

    • Posted by Mahvish Zeya 2 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Kuldeep Yadav 1 year, 11 months ago

    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

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    • Posted by Shivam Gupta 2 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Aarzoo Saini 2 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Dharshini Priya 2 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Dharshini Priya 2 years ago

    I

    4Thank You

    ANSWER

    • Posted by Mohamed Siraj 2 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Gokula Kannan 2 years ago

    According to lens maker formula find the 2 equations separately and divide to find the final f value. The ans: -160 cm Since medium has greater refractive index than convex lens it behave as concave lens

    0Thank You

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    • Posted by Rupesh Sharma 2 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Suhani Dhamania 2 years ago

    9×10⁹nm²/c²

    2Thank You

    Shamita Ramesh 2 years ago

    9×10^9Nm^2/C^2

    4Thank You

    ANSWER

    • Posted by Charan Teja 2 years ago

    CBSE > Class 12 > Physics
    • 5 answers

    Mannat Thukral 1 year, 10 months ago

    Objects tend to fall down themselves once thrown up due to the presence of earths gravitational field which exerts a gravitational force on the objects and pull them down.

    0Thank You

    Gokula Kannan 2 years ago

    By Newton's idea who once thought like u

    0Thank You

    Abhishek Yadav 2 years ago

    Due to gravity

    0Thank You

    Rupesh Sharma 2 years ago

    Because your imagination

    0Thank You

    Manish Singh 2 years ago

    Due to gravity

    0Thank You

    ANSWER

    • Posted by Himesh Kumar Pathak 2 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Gokula Kannan 2 years ago

    Even though electric field and magnetic field have no colours their resultant will be produced in the form of electromagnetic radiations and some of these radiations which lie in visible region has 7 colours which has been referred as THE LIGHT

    0Thank You

    ANSWER

    • Posted by Parth Kayada 2 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Manish Singh 2 years ago

    Plant cell or animal cell or fuel cell about which cell you are asking

    3Thank You

    Tushar Goswami 2 years ago

    Which cell

    0Thank You

    ANSWER

    • Posted by Nitin Kumar 2 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Manish Singh 2 years ago

    don't bother now, the time has passed

    1Thank You

    Parth Kayada 2 years ago

    1st chapter 😂😂😂

    1Thank You

    ANSWER

    • Posted by Tushar Goswami 2 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Manish Singh 2 years ago

    This is CBSE board app

    0Thank You

    ANSWER
    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

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    Posted by Harikesh Sahu 2 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Tushar Goswami 2 years ago

    What is this?????

    0Thank You

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    • Posted by Tushar Goswami 2 years ago

    CBSE > Class 12 > Physics
    • 3 answers

    Ayush Singh 2 years ago

    Henry or Weber/Ampere. But most commonly we use Henry.

    1Thank You

    Ramandeep Chani 2 years ago

    Mutual induction is defined as the property of the coils that enables it to oppose the changes in the current in another coil. With a change in the current of one coil, the flow changes too thus inducing EMF in the other coil. This phenomenon is known as mutual induction.

    2Thank You

    Jatin Grewal 2 years ago

    Henry

    3Thank You

    ANSWER

    • Posted by Vaibhav Kumar 2 years ago

    CBSE > Class 12 > Physics
    • 5 answers

    Tushar Goswami 2 years ago

    See Arvind academy one shot. Superb. Studying

    0Thank You

    Namit K 2 years ago

    All important derivation class 13

    0Thank You

    Twin Leaf 2 years ago

    With formulas

    0Thank You

    Twin Leaf 2 years ago

    Do learn definitions well

    0Thank You

    Yashik Raj 2 years ago

    See lecture of vedantu they made it crystal clear Don't worry you can do well in board

    0Thank You

    ANSWER

    • Posted by Munazza Noorain 2 years ago

    CBSE > Class 12 > Physics
    • 4 answers

    Manish Singh 2 years ago

    No

    0Thank You

    Account Deleted 2 years ago

    Nope .

    0Thank You

    Vaibhav Kumar 2 years ago

    No but you can fail if you won't study so study

    0Thank You

    Love Guru 2 years ago

    No

    0Thank You

    ANSWER

    • Posted by Krishna Kavya A 2 years ago

    CBSE > Class 12 > Physics
    • 3 answers

    Gokula Kannan 2 years ago

    By Hot wire instruments since DC ammeter doesn't read AC

    0Thank You

    Asad Naved 2 years ago

    By ammeter

    0Thank You

    Abhijeet Punia 2 years ago

    With the help of ammeter

    0Thank You

    ANSWER

    • Posted by Aditya Mohapatra 2 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Dhirendra Bankoti 2 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Rishabh Kumar 2 years ago

    No

    0Thank You

    ANSWER

    • Posted by Cyanne Maria John 2 years ago

    CBSE > Class 12 > Physics
    • 0 answers
    ANSWER

    • Posted by Ramesh B 2 years, 1 month ago

    CBSE > Class 12 > Physics
    • 2 answers

    Nitin Kumar 2 years ago

    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

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    0Thank You

    Md Mubbu 2 years ago

    search-icon-header Search for questions & chapters search-icon-image Class 12 >>Physics >>Electrostatic Potential and Capacitance >>Effects of Dielectrics in Capacitors >>Two identified parallel plate capacitors Question Bookmark Two identified parallel plate capacitors A and B are connected to a battery of V volts with the switch S closed. The switch is now opened and the free space between the plates of the capacitors is filled with a dielectric of dielectric constant K. Find the ratio of the total electrostatic energy stored in both capacitors before and after the introduction of the dielectric. 623081 expand Medium Updated on : 2022-09-05 Solution verified Verified by Toppr Initially charge on either capacitor is Q A ​ =Q B ​ =CV . After dielectric is introduced, new capacitance of either capacitor =KC After opening switch potential across capacitor A is V volts. Let potential across capacitor B be V 1 ​ Therefore Q B ​ =CV=C 1 ​ V 1 ​ =KCV 1 ​ V 1 ​ = K V ​ Initial energy in both capacitors = 2 CV 2 ​ + 2 CV 2 ​ =CV 2 Final energy of capacitor A = 2 KCV 2 ​ Final energy of capacitor B = 2K 2 KCV 2 ​ = 2K CV 2 ​ Total final energy of both capacitors = 2 KCV 2 ​ + 2K CV 2 ​ =( 2K K 2 +1 ​ )CV 2 Ratio of the total electrostatic energy stored in both capacitors before and after the introduction of the dielectric= ( 2K K 2 +1 ​ )CV 2 CV 2 ​ = K 2 +1 2K ​

    2Thank You

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    Kya

    • Posted by Akshay Kumar 2 years, 1 month ago

    CBSE > Class 12 > Physics
    • 1 answers

    Manish Singh 2 years ago

    Fool

    0Thank You

    ANSWER

    • Posted by Mansi Raj 2 years, 1 month ago

    CBSE > Class 12 > Physics
    • 2 answers

    Gokula Kannan 2 years ago

    Kq1q2 (r bar) / r^3

    0Thank You

    Risalat Khan 2 years, 1 month ago

    F=kq1q1/r²

    2Thank You

    ANSWER

    • Posted by Mansi Raj 2 years, 1 month ago

    CBSE > Class 12 > Physics
    • 1 answers

    Mukesh Pottam 2 years ago

    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

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    0Thank You

    ANSWER

    • Posted by Mariyathul Kifthiya 2 years, 1 month ago

    CBSE > Class 12 > Physics
    • 2 answers

    Karthika M.S 2 years, 1 month ago

    I=q/t

    0Thank You

    Ajay Gangwar 2 years ago

    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

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    1Thank You

    ANSWER

    • Posted by Naba Chisti 1 year, 11 months ago

    CBSE > Class 12 > Physics
    • 2 answers

    Preeti Dabral 1 year, 11 months ago

    Cross-sectional area is an area which we obtain when the same object is cut into two pieces. The area of that perticular cross section is know as cross sectional area.

    0Thank You

    Mannat Thukral 1 year, 10 months ago

    Area of cross section refers to a particular area of the surface which is obtained by cutting the object

    0Thank You

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