CBSE > Class 12 > Physics | CBSE Board | Homework Help

As electrostatic force is inversely proportional to distance then the force decrease when length of suspension string from a common point is increased

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Madhav Sharma 4 years, 2 months ago

electrostatic force will decrease as the length increse because it is inversely proportional to distance

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A silver wire has a resistance of 2.1ohm at 27 deg and a resistance of

Posted by K Vedha 4 years, 2 months ago

CBSE > Class 12 > Physics

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Two charges 5uc and 20uc are placed 15cm apart. At what point on line joining two charges is the electric field zero

Posted by Khushi Bhaskar 4 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Debraj Das 4 years, 2 months ago

Question is wrong?

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A flexible wire of irregular shape, abcd, as shown in the figure, turns into a circular shape when placed in a region of magnetic field which is directed normal to the plane of the loop away from the reader. Predict the direction of the induced current in the wire.

Posted by Ravi Kant 4 years, 2 months ago

CBSE > Class 12 > Physics

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What is term 1 syllabus for 2022 boards for all subjects

Posted by Simran Kaur 4 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Snehil J@@T 4 years, 2 months ago

It's available on internet ☺

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There is one charged tiny spherical oil drop and the magnitude of electric field intensity at a point on its surface is E. If n such drops are combined to make a single drop then what will be the net electric field intensity at a point on the surface of the bigger spherical drop . Assume that charge is uniformly distributed over the volume of oil drop

Posted by ⠀ ⠀ ⠀ ⠀ 4 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

? Royal Thakur ? 4 years, 2 months ago

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Satyam Satyam 4 years, 2 months ago

According to me Let the charge on small drop is--->q ,And the radius of small drop is --->r. E=kq/r^2 . Now if n drops are combined net charge will be nq and the new radius of the drop let be R Then E'=knq/R^2

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Express Gauss law.!

Posted by Aman Dhakad 4 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Shreya Thakur 4 years, 2 months ago

Gauss laws states that the total electric flux on a surface is 1/epsilon times the total charge(q) on the surface

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Prachi Agarwal 4 years, 2 months ago

Gauss law states that the closed line integral of the electric flux in the closed path is equal to the u° times the net charge enclosed by that path.

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There is one charged tiny spherical oil drop and the magnitude of electric field intensity at a point on its surface is E. If n such drops are combined to make a single drop then what will be the net electric field intensity at a point on the surface of the bigger spherical drop. Assume that charge is uniformly distributed over the volume of oil drop

Posted by Rosie Brown 4 years, 2 months ago

CBSE > Class 12 > Physics

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How would you connect 8,12,24 capacitors to obtain minimum capacitance and maximum capacitance If the potential difference of 100volts is applied across the system what would be the charges on the capacitors in each case

Posted by Sameer Yadav 4 years, 2 months ago

CBSE > Class 12 > Physics

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14. Two point charges q and -q are kept at a distance apart from each other in vacuum, What is the electric field at the mid point of the line joining them ?

Posted by Aman Kumar 4 years, 2 months ago

CBSE > Class 12 > Physics

3 answers

Manas Verma 4 years, 2 months ago

8kq/r^2

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Manas Verma 4 years, 2 months ago

4kq/r^2 towards +q

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Ayush Singh 4 years, 2 months ago

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Meter bridge answer

Posted by Venkat Balaji 4 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Ashmita Singh 4 years, 2 months ago

Meter bridge is used to measure unknown resistance

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How many chapter are deleted in science streme subjects class 12th

Posted by Sudhanshu Pal 4 years, 2 months ago

CBSE > Class 12 > Physics

3 answers

Mayank Tyagi 4 years, 2 months ago

No. Chapter deleted

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Manyata Panda 4 years, 2 months ago

No anyone

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Aditya Pal 4 years, 2 months ago

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Class 12

Posted by Sudhanshu Pal 4 years, 2 months ago

CBSE > Class 12 > Physics

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How many chapter are deleted in science streme subjects

Posted by Sudhanshu Pal 4 years, 2 months ago

CBSE > Class 12 > Physics

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Dimension of electric susceptibility

Posted by Sneha Choudhury 4 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Ankita Borah 4 years, 2 months ago

Dimensionless

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Energy loss in capacitor

Posted by Abhishek Upadhayay 4 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Sher Singh 4 years, 2 months ago

Energy stored in capacitor=1/2qv Energy loss in capacitor=1/2qv Total energy provided to capacitor=qv

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two resistance

Posted by Gayathri K S 4 years, 2 months ago

CBSE > Class 12 > Physics

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Full hpcl kuchh school school off idyll TF scarf al Jessica's jacchi

Posted by Ankit Sharma 4 years, 2 months ago

CBSE > Class 12 > Physics

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Find electric field due to infinite charge carrying rod at distance R

Posted by Praveen Geel 4 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Ashmita Singh 4 years, 2 months ago

2klambda by r or lambda by 2 pie Eo

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Satyam Satyam 4 years, 2 months ago

Lembda/2πr£° N/C

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What is value of g and G at the centre of earth

Posted by Prerna Singh 4 years, 2 months ago

CBSE > Class 12 > Physics

3 answers

Sher Singh 4 years, 2 months ago

Value of g is zero at centre of earth where as G is constant term.

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Rahul Yadav 4 years, 2 months ago

g=0 (zero) And G=6.67X10^-11 Nm^2/kg^2

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Anuj Sharma 4 years, 2 months ago

g will zero at the centre of earth and G is constant at every where.

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Which quantity have unit rpm. Show it in rad/s

Posted by Prerna Singh 4 years, 2 months ago

CBSE > Class 12 > Physics

3 answers

Gangothri V 4 years, 2 months ago

2π/60

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Tannu Rao 4 years, 2 months ago

1 rpm = 2π/60 rad/s

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Anuj Sharma 4 years, 2 months ago

Omega

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a charged particle of mass M carrying charge Q is kept inside a uniform electric field of intensity E. find the linear distance travelled by the particle in time T

Posted by Liz Wang 4 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Satyam Satyam 4 years, 2 months ago

Initial velocity will be 0

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Satyam Satyam 4 years, 2 months ago

Charge=Q C, Mass=M Kg Electric feild=E vector N/C Initial velocity=u m/s Since charge is positive so the force act on it is in the direction to the electric field. And its value will be QE HENCE BY THE 2ND EQ OF MOTION s=ut+1/2at^2 Distance will be QET^2/2M meters

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Si unit of newton

Posted by Narender Singh 4 years, 2 months ago

CBSE > Class 12 > Physics