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Two metallic sphere of radii 1 cm and 3 cm are given charge of minus 1 into 10 ke power 2 coulomb and 5 x 10 power 2 respectively if these are connected by conducting wire the final charge on the bigger sphere is

Posted by Khushi Aw 18 hours ago

CBSE > Class 12 > Physics

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Obtain ohm’s law from the expression for electrical conductivit

Posted by Naman Gupta 1 day ago

CBSE > Class 12 > Physics

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Q.3A Free Proton and a Free Electron are Placed in a Uniform Field. Which of the Two Experiences Greater Force and Greater Acceleration?

Posted by Ayush Rajput 1 day, 19 hours ago

CBSE > Class 12 > Physics

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A pith ball may become charge d by gaining or losing

Posted by Anterpreet Kaur 1 day, 21 hours ago

CBSE > Class 12 > Physics

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A rectangular surface of 10 cm into 15 cm is placed inside a uniform electric field of 25 VM such that normal to surface make an angle of 60 with electric field find the electric flux through the rectangular surface

Posted by Afreen Ahmed 1 day, 22 hours ago

CBSE > Class 12 > Physics

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Two fixed charged A and B of 5×10^6 C each are separated by 6m distance. C is the midpoint of the line joining A and B. A charge Q of -5×10 ^6C is shot perpendicular to the line joining of Aand B through C with a kinetic energy of 0.06 J. The charge Q comes to rest at a point D. The distance CD is

Posted by Dheerendra Kushwaha 5 days, 16 hours ago

CBSE > Class 12 > Physics

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An electric dipole consists of point charges -1pC and +1pC located at (0,0) and (3mm,4mm) respectively in xy plane . An electric field 1000volt/m is switched on in the region. Find torque acting on dipole .

Posted by Komal Gill 5 days, 21 hours ago

CBSE > Class 12 > Physics

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A straight wire has a current of 20 A. An electron is moving with a velocity of 1-0 x 10 ms at a distance of 10 cm from the wire. Calculate the force on the electron when it is moving (i) parallel to the wire in the direction of the current, (ii) towards the wire (iii) perpendicular to the parallel above

Posted by Kartik Khare 1 week, 3 days ago

CBSE > Class 12 > Physics

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Find and understand the properties and phenomena of light

Posted by Nandani Rathore 1 week, 3 days ago

CBSE > Class 12 > Physics

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What are the effect of temperature on magnetic properties.

Posted by Rohith Nenavath 1 week, 5 days ago

CBSE > Class 12 > Physics

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I am from class 12 cbse , I have a class test , so what are the most important derivations from chapter current electricity that I should prepare and go

Posted by Shivangi Pandey 2 weeks ago

CBSE > Class 12 > Physics

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Posted by Naushad Jamil Ahmed Qureshi 1 week, 5 days ago

CBSE > Class 12 > Physics

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Posted by Naushad Jamil Ahmed Qureshi 1 week, 5 days ago

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Posted by Naushad Jamil Ahmed Qureshi 1 week, 5 days ago

CBSE > Class 12 > Physics

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Posted by Naushad Jamil Ahmed Qureshi 1 week, 5 days ago

CBSE > Class 12 > Physics

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A positively charged rod having uniform linear charge density . C/m all over it, is placed in a hypothetical cube of edge / with the centre of the cube at one end of the rod. Find the minimum possible flux of the electric field through the entire surface of the cube.

Posted by Nimesha Agarwal 2 weeks, 4 days ago

CBSE > Class 12 > Physics

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Pawan Kumar 2 weeks ago

According to question ; #Half rod is present inside the cube and half is outside it. #we have to Find the minimum possible flux of the electric field through the entire surface of the cube. #using gauss law Charge inside the 3-d surface Divided by epsilan is the net electric flux through the 3-d surfaces. Here net charge in the cube is =q/2 so, electric flux from the cube is q/2e

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Show does the force between two points charges change if the dielectric constant of the medium in which they are kept increase

Posted by Arman Cheema 2 weeks, 5 days ago

CBSE > Class 12 > Physics

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Pawan Kumar 2 weeks ago

F=q1*q2/4π€r^2 {€=permittivity of mediam} {£=permittivity of vacuum} Dielectric constantly(©)=€/£ (© directly proportional to €) Now; As: € F=q1*q£*©=2/4π*©*£*r^2 F is inversely proportional to © # As the dielectric constant of the medium in which they are kept increased force will get decrease

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A pure si crystel having 5 * 10^8 atoms m^-3 is dopped with 1ppm concentration of antimony if the concentration of holes in the dopped crystal is found to be 4.5 * 10 ^9 m^-3 , the concentration (in m-3) of intrinsic charge in si is about

Posted by Arbaaz Alam 2 weeks, 6 days ago

CBSE > Class 12 > Physics

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loop rule value of I1, I2 by substitution method

Posted by Pratima Sharma 3 weeks, 4 days ago

CBSE > Class 12 > Physics

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Who proposed the first model of atoms

Posted by Injamul Hoque 3 weeks, 5 days ago

CBSE > Class 12 > Physics

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Yogesh Yogi 3 weeks, 2 days ago

J.J.Thomson

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Aakhya Mishra 1 week, 5 days ago

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Solution for textbook exercise ch 1

Posted by N.G. Thilaksha 4 weeks ago

CBSE > Class 12 > Physics

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Akshay Namdeo 1 week, 5 days ago

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Nobody 🌼🌼🌼 3 weeks, 6 days ago

Available on this application.

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Find the temp at which the resistance of a wire mode of silver will be twice it's resistance at 20.c take 20 as the reference temp and temp coefficient of resistance of silver at 20 4.0 *10*-³

Posted by Sujal Istwal 4 weeks ago

CBSE > Class 12 > Physics

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Two equal Ball's having egual positive charge q Coulomb are suspended by two insulating strings of equal length what would be the effect on the force when a plastic sheet is inserted between the two

Posted by Vartika Yadav 1 month ago

CBSE > Class 12 > Physics

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Pawan Kumar 2 weeks ago

As the plastic sheet inserted. Value of Dielectric constant will increased , hence the value of force will decrease

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Som Verma 4 weeks, 1 day ago

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To investigate torque on current loop in consistent magnetic field project work pdf

Posted by Alok Prajapati 1 month ago

CBSE > Class 12 > Physics

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Posted by Credit Aap 3 weeks, 6 days ago

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Posted by Credit Aap 3 weeks, 6 days ago

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Posted by Credit Aap 3 weeks, 6 days ago

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Posted by Credit Aap 3 weeks, 6 days ago

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what is meant by the statement, "electric field of a point charge has spherical symmetry, whereas that of an electric dipole is cylindrically symmetric"?class12

Posted by Anamika Rai 1 month ago

CBSE > Class 12 > Physics

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God Blaze 1 month ago

The electric field of a point charge exhibits spherical symmetry because it is radially symmetric and depends only on the distance from the charge. The electric field of a dipole exhibits cylindrical symmetry around the axis of the dipole moment, as it remains unchanged under rotations about this axis but varies with angle and distance relative to the dipole.

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Posted by Arshdeep Kaur 1 month, 1 week ago

CBSE > Class 12 > Physics