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Derive expression for torque on a dipole in electric field also right stable and unstable condition what will happen if it is kept in non uniform electric field

Posted by Komal Sharma 1 year, 1 month ago

CBSE > Class 12 > Physics

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Two charges q1 and q2 separated by a small distance satisfied the equation q1 and q2 =0 what does it tell us about the charges

Posted by Srashti Singh 1 year, 1 month ago

CBSE > Class 12 > Physics

1 answers

Ankur Thenua 1 year, 1 month ago

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Show the transectory of the alpha- particle when it approach atoms of atomic no. Z

Posted by Sharla Maibam 1 year, 1 month ago

CBSE > Class 12 > Physics

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A 200 micro Farad parallel plate capacitor having plate separation of 5 mm is charged by a 100 volt DC source . It remains connected to the source. Using an insulated handle the distance between plates is doubled and the dielectric slab of thickness 5 mm and dielectric constant 10 is introduced between the plates . Explain with reason , how the (1) capacitance , (2) electric field between the plates , (3) energy density of the capacitor will change ?

Posted by Aditya Tiwari 1 year, 1 month ago

CBSE > Class 12 > Physics

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SI unit of emf

Posted by Mj Gamer 1 year, 2 months ago

CBSE > Class 12 > Physics

4 answers

Harshpreet Kaur Sidhu 1 year ago

Volt

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Harshpreet Kaur Sidhu 1 year ago

Maxwell

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Kushank Bansal 1 year, 1 month ago

Volt

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• ȺʏꪊSʜ • 1 year, 2 months ago

Voltage

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With the help of a diagram explain the principle and working of a device which produces current that reversities its direction after regular intervals of time

Posted by Ansh Yadav 1 year, 2 months ago

CBSE > Class 12 > Physics

1 answers

Harshpreet Kaur Sidhu 1 year ago

Generator

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state two differences between interference and diffraction for light of wavelength Lambda is equal to 6 into 10 to the power 7 M it is found that in a thin film of air 9 fringes occur between two points deduce the difference of film thickness between these points

Posted by Nitul Bro 1 year, 2 months ago

CBSE > Class 12 > Physics

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Important mcq of ch 1 to 8

Posted by Kartik Antil 1 year, 2 months ago

CBSE > Class 12 > Physics

1 answers

Sameer Ahmad 1 year, 2 months ago

What is electric field

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A solenoid coil of 300 turns

Posted by Steeva Anna Raju 1 year, 2 months ago

CBSE > Class 12 > Physics

1 answers

Broker Jaat 1 year, 2 months ago

N =300

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Please explain me moving coil galvanometer

Posted by Neeraj Gujjar 1 year, 2 months ago

CBSE > Class 12 > Physics

3 answers

Aryan Rana 1 year, 2 months ago

Coil moveing in area

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Aryan Rana 1 year, 2 months ago

Sir

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Aryan Rana 1 year, 2 months ago

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An electric dipole is held in a uniform electric field show that the net force acting on it is zero. The dipole is aligned parallel to the field. Find the workdone in rotating it through the angle of 180°.what will happen if the field were not uniform

Posted by Nancy Lidiyaa 1 year, 2 months ago

CBSE > Class 12 > Physics

4 answers

Aseem Mahajan 1 year, 2 months ago

<font face ="Times New Roman">DIY the proving part
Work done is 0 (intuitively too)
If field was not uniform, the dipole will experience a net force with torque.

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Shalini Shalini 1 year, 2 months ago

Zero

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Neeraj Gujjar 1 year, 2 months ago

Zero

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Sankalp Yadav 1 year, 2 months ago

Zero

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) Calculate the work done to dissociate the system of three charges placed on the vertices of an equilateral triangle of side 10 cm. Here q 1.6X10™ C

Posted by Priyanshi Rana 1 year, 2 months ago

CBSE > Class 12 > Physics

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An infinite line of charge has a linear charge density of 10^-7 c/m . What will be the magnitude of the force acting on an alpha particle placed at a distance of 4cm from the line charge?

Posted by Lise Dahila 1 year, 2 months ago

CBSE > Class 12 > Physics

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Two point charges having equal charges separated by distance experience a force of 8 N. What will be the force experienced by them, if they are held in water, at the same distance? (K-80) (1)

Posted by Priyanshi Rana 1 year, 2 months ago

CBSE > Class 12 > Physics

1 answers

Aseem Mahajan 1 year, 2 months ago

<font face ="Times New Roman">Charge on both = q
Distance = r
$$F_a = 8 = \dfrac{k_aq^2}{r^2}$$
$$F_w = \dfrac{k_wq^2}{r^2}$$
Divide and solve

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Two points charges having equal chargea

Posted by Priyanshi Rana 1 year, 2 months ago

CBSE > Class 12 > Physics

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1. An inductor I = 0.4H , a capacitor C = 10mu*F and a resistor R = 400Omega are connected in series to an ac source V = 40sin(1000t + pi / 3) volt. Calculate the (a) impedance of the circuit, and (b) peak value of current. (2020C)

Posted by Bhumi Parmar 1 year, 2 months ago

CBSE > Class 12 > Physics

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An electric CKT is fig calculated the potential difference across the resistor of 400 ohm as will be measured by the voltmeter V of resistance 400 ohm either by applying kirchhoff rule

Posted by Sachin Yadav 1 year, 2 months ago

CBSE > Class 12 > Physics

1 answers

Tabish Iqbal 1 year, 2 months ago

Don't post personal information, mobile numbers and other details.
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(a) define electric flux . Is it a scalar quantity ? A point charge q at distance d/2 directly above the centre of a square of side d as shown in figure use gauss law to obtain expression for the electric flux through square ..

Posted by Arjun Chauhan 1 year, 2 months ago

CBSE > Class 12 > Physics

2 answers

Sneha Sharma 1 year, 2 months ago

Electric Field lines passing through any closed surface area perpendiculary is called flux

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Riya Shukla 1 year, 2 months ago

Field lines passing through any closed surface is called flix. Yes

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The magnetic flux through a coil perpendicular to its plane and direct into vapour is very according to the relation 5 is equal to t square + 40t + 6 milliampere find the Induce emf in the coil at t=4 s

Posted by Mohit Mohan Mohapatra 1 year, 2 months ago

CBSE > Class 12 > Physics

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Rms

Posted by Purushottam Raj 1 year, 2 months ago

CBSE > Class 12 > Physics

1 answers

Anshu Bharti 1 year, 2 months ago

Root mean square

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A straight wire care caring a current of 12 a is banned into a semicircular arc of radius 2.0 CM as shown in figure 4.1 a considered the magnetic field B at the centre of the arc a number what is the magnetic field due to the street segments the number in what way the contribution to be from the semi circle differs from that of a circular loop and in what way does it resemble see number would you answer me different arc of the same radius but in the opposite way as shown in figure 4.1

Posted by Khushbu Ara Sultana 1 year, 3 months ago

CBSE > Class 12 > Physics

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Do relative permittivity and dielectric constant …

Posted by Nittin Mittal 1 year, 3 months ago

CBSE > Class 12 > Physics

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Two tiny fair carrying charge 1.5 UC and 2.5 UC are located 30 cm apart find the potential and electric field at the midpoint of the line joining the two charges

Posted by Vamika Sharma 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Self induced

Posted by Lalin Kaushik 1 year, 3 months ago

CBSE > Class 12 > Physics

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Give me some questions related to drift velocity and current density

Posted by Chotu Lilliput 1 year, 3 months ago

CBSE > Class 12 > Physics

1 answers

Shivansh Pandey 1 year, 3 months ago

Derive the relation between drift velocity and current density.

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Write the expression for magnetic force per unit length between two long straight parallel conductors carrying current. Give the nature of force between two parallel conductors carrying current in same direction.

Posted by Jyotsna Dange 1 year, 3 months ago

CBSE > Class 12 > Physics

2 answers

Shivansh Pandey 1 year, 3 months ago

Nature Attractive

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Vaishnavi Verma 1 year, 3 months ago

f12/l= u0 2 i1i2/4 pi d it is attractive if both conductor current flows in same direction and it is repulsive if is flows in opposite direction

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Three forces 3 N 5 N and 4N acting simulatenously calculate resultant magnitude and direction

Posted by Ayush Mishra 1 year, 3 months ago

CBSE > Class 12 > Physics

0 answers

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Define dielectric constant.

Posted by Himanshi Pandey 1 year, 3 months ago

CBSE > Class 12 > Physics

1 answers

Himan Shu 1 year, 2 months ago

Challenge krna chahoge

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Assertion : Voltmeter is connected in parallel combination. Reason : Voltmeter has very large resistance

Posted by Adesh Kesharwani 1 year, 3 months ago

CBSE > Class 12 > Physics

1 answers

Mayank Rathore 1 year, 3 months ago

Both are true, but voltmeter is connected in parallel to determine the potential different between two points, and hence R is NOT correct explanation of A

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Mention the factors on which the fringe width depends

Posted by Akkamahadevi Hiremath 1 year, 3 months ago

CBSE > Class 12 > Physics