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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.

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Jatin Grewal 3 years, 1 month ago

Henry

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Please tell me how can I do magnetism and current electricity easily?

Posted by Vaibhav Kumar 3 years, 1 month ago

CBSE > Class 12 > Physics

5 answers

Tushar Goswami 3 years, 1 month ago

See Arvind academy one shot. Superb. Studying

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Namit K 3 years, 1 month ago

All important derivation class 13

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Twin Leaf 3 years, 1 month ago

With formulas

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Twin Leaf 3 years, 1 month ago

Do learn definitions well

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Yashik Raj 3 years, 1 month ago

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

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Is cbse board harddd?

Posted by Munazza Noorain 3 years, 1 month ago

CBSE > Class 12 > Physics

4 answers

Manish Singh 3 years, 1 month ago

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Account Deleted 3 years, 1 month ago

Nope .

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Vaibhav Kumar 3 years, 1 month ago

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

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Love Guru 3 years, 1 month ago

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How to measure ac current

Posted by Krishna Kavya A 3 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Gokula Kannan 3 years, 1 month ago

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

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Asad Naved 3 years, 1 month ago

By ammeter

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Abhijeet Punia 3 years, 1 month ago

With the help of ammeter

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Chapter wise Theoretical Important Questions in Physics for Class-XII

Posted by Aditya Mohapatra 3 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Is combination of resistors out of syllabus for 2022-23 session class 12 CBSE ?

Posted by Dhirendra Bankoti 3 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Rishabh Kumar 3 years, 1 month ago

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Estimate the number of fringes obtained in YDS experiment with Fringe width 0.5 mm, which can be accommodated within the region of total angular spread of Central Maxima you to single slit

Posted by Cyanne Maria John 3 years, 1 month ago

CBSE > Class 12 > Physics

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Two parallel metal plates P and Q are inserted at equal distances into a plane capacitor as shown in fig. Plates A and B of the capacitor are connected to a battery of e.m.f. V.

Posted by Ramesh B 3 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Nitin Kumar 3 years, 1 month ago

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Md Mubbu 3 years, 1 month 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

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Kya

Posted by Akshay Kumar 3 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Manish Singh 3 years, 1 month ago

Fool

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Give the vector from of culam law

Posted by Mansi Raj 3 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Gokula Kannan 3 years, 1 month ago

Kq1q2 (r bar) / r^3

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Risalat Khan 3 years, 1 month ago

F=kq1q1/r²

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Culam ke niyam ka sadish rup ko samjhaiye

Posted by Mansi Raj 3 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Mukesh Pottam 3 years, 1 month ago

Don't post personal information, mobile numbers and other details.
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Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
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Deduce an experessio for the current (I) flowing it

Posted by Mariyathul Kifthiya 3 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Karthika M.S 3 years, 1 month ago

I=q/t

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Ajay Gangwar 3 years, 1 month ago

Don't post personal information, mobile numbers and other details.
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What is meant by area of cross section??

Posted by Naba Chisti 3 years ago

CBSE > Class 12 > Physics

2 answers

Preeti Dabral 3 years 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.

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Mannat Thukral 2 years, 10 months ago

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

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Salo

Posted by Puneet Mittal 3 years ago

CBSE > Class 12 > Physics

2 answers

Manish Singh 3 years, 1 month ago

Fool

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Aditya Tripathi 3 years, 1 month ago

tmkc Samajh nahi aaya to Ignore kar do bas

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V-I characteristic of p-n junction diode?

Posted by Priya Baser 3 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Sonam Nain 3 years, 1 month ago

Draw forward and reverse bias V-I characterstic

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Two points charge Q and -2Q are placed at some distance apart. If the electric field at the location of Q is E, then the electric field at the location of -2Q will be ?

Posted by Chetna Kashyap 3 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Rebel A 3 years, 1 month ago

It will be half of E.

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to determine resistivity of two/three wires by plotting a graph for potential difference versus current.

Posted by Lakshaman Kumar Mandal 3 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Lakshman@45

Posted by Lakshaman Kumar Mandal 3 years ago

CBSE > Class 12 > Physics

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A cube of side 10 cm has a charge 18 coulomb's. Calculate the surface density of charge

Posted by Priya Kumari 3 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Utkarsh Jaiswal 3 years, 1 month ago

1800

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The electric potential on the axis of an electric dipole at distance are from its centire is V then the potential at point at the same distance on the equatorial line will be

Posted by Vinay Sharma 3 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Mridula Kumari 3 years, 2 months ago

Potential will be zero because potential due to both charges are equal and opposite in nature i.e. one is positive while another is negative.

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Arpit Mathan 3 years, 2 months ago

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According to Coulomb's law which is the correct relationship for the following figure

Posted by Vinay Sharma 3 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Arpit Mathan 3 years, 2 months ago

Where is figure

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What is the magnetic dipole moment of a coil

Posted by Sonam Tsomo 3 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Shivani 3 years, 2 months ago

Magnetic dipole is a two types positively and negatively then the moment of a coil positive in outside and negativ in inside in coil as konw a magnetic dipole moment

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What is intrinsic semiconductor

Posted by Anshuman Tiwari 3 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Arpit Mathan 3 years, 2 months ago

The pure semiconductor are called intrinsic semiconductor. In which holes =electron

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Shivani 3 years, 2 months ago

Is h pure semiconductor , also called an undoped semiconductor without any singnificant dopan species present

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Plot a graph showing variation of current versus voltage for the material GaAs.

Posted by Adikshi Nautiyal 3 years, 2 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

How many types of Semiconductors are there discuss their types in detail

Posted by Keshav Rajput 3 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Ashish Chaudhary. 3 years, 2 months ago

There are two types of semiconductor (i) Intrinsic semi conductor :- These are naturally or by birth semi conductors they are impurity free. (ii) extrinsic semi conductor :- they are also the same but impurities are added in extrinsic semi conductors. In these semi conductors Doping is done. Either tetra valent atom or Penta valent atom If atom is tetravalent then it said to be p type or if Penta valent then it said to be n type semi conductor

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Parth Patidar. 3 years, 2 months ago

Two types Extransic and intransic semiconductors

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To measure resistance, voltage (AC/DC), current (AC) and check continuity of a given circuit using multimeter.

Posted by Bhuvan Verma 3 years, 2 months ago

CBSE > Class 12 > Physics