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The dipole moment of a curcular loop carrying a current I is m and the magnetic field at the centre of the loop is B1 . When the dipole moment is doubled by keeping the current constant , the magnetic field at the centre of the loop is B2 . The ratio of B1/B2 is..

Posted by Mukta Luhach 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

If a force F = (2x+3xsquare) i acts along x axis on an object and moves it from x = 2m to X=4m the work done is

Posted by Mukta Luhach 7 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Somya Singh 7 years, 5 months ago

dw = integral ( F.dx ) Integrating and putting the limits Ans . 68 Joules

ANSWER

Define electric flux

Posted by Mohd Raqib Ansari 5 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Akshay Verma 7 years, 5 months ago

Electric feild per unit area is called electric flux.

ANSWER

Estimate the number of electrons or protons and the total positive charge in 180ml of pure water

Posted by Prakash Yadav 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Two opposite corners of a square carries charge Q each another. Two opposite corner of the same square carries charge q each. If the resultant force is zero on q. How are q and Q are related?

Posted by Stuti Srivastava 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Derive the expression for express pressure inside a liquid drop

Posted by Biswanath Pal 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Calculate the fat % of male ? With example

Posted by Tushar Vishwakarma 7 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Tushar Vishwakarma 7 years, 5 months ago

Srry For my mistake this question is related to Physical Education

ANSWER

What's flat foot

Posted by Pankhuri Kumar 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Electric flux of a shell

Posted by Piyush Kumar 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

. A uniform plate of mass M stays horizontally and symmetrically on two wheels rotating in opposite directions. The separation between the wheels is ℓ . The friction coefficient between each wheel and the plate is μ. Find the time period of the oscillation of the plate if it is slightly displaced along its length and released

Posted by Kartik Iyer 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A,B,C is an equilateral triangle of side 10 m,D is the mid point of B,C charges of 100,-100 and 75 M/C are placed at B,C and D respectively. Find the force acting on charge +1 M/C placed at A,

Posted by Anand Kumar 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Explain charing by induction

Posted by Shashwat Tiwari 7 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Annu Kharb 7 years, 5 months ago

The charge produce by the bodies if they are not in actual contact with each other

ANSWER

write the examples of electrostatic series

Posted by Harsh Anshu 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

campare the electrostatics force b/w gravitational force a electron and proton if there distac in 1 angroton

Posted by Krati Jain 7 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Suraj Pal 7 years, 5 months ago

Electrostatic force is greater than gravitational force

ANSWER

What is the significance of electric field

Posted by Jayaasrii Jayaasrii 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

a ball is thrown from the top of a tower with an initial velocity of 10m/sec at an angle of 30° above the horizontal. It hit the ground at a distance of 17.3 m from the base of tower. Calculate the height of the tower

Posted by Nishant Rajpoot 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

An electric dipole having charges -+5Meu coulombs are separated by a distance 4cm calculate electric field intensity at a point 4cm from mid point at the axial line of dipole?

Posted by Samar Samar 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

If a body gives out 10^12 electron ever second how much time is represented to get total charge of 4 c from it.

Posted by Akansha Kumari 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A pendulum of mass 60 gm carrying a charge of 10*10^-8 c is at rest in a horizontal uniform electric field of 4*10^4 N/c find the tension is the thread of pendulum and the angle it makes with vertical.

Posted by Akansha Kumari 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

How to get 70% plus marks in physics

Posted by Raghib Habib 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is heat

Posted by Priya Mausami 7 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Deep Kaur 7 years, 5 months ago

Heat is a form of energy that can be transferred from one object to another or even created at expense of the loss of other forms of energy

ANSWER

How does the charge is conserved when glass rod is rubbed with silk

Posted by Jayaasrii Jayaasrii 7 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Consider 4 charges q, -2q, -q and 2q kept at the vertices of the square of side a. Calculate the net force acting on charge -2q.

Posted by Astha Singh 7 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Mansi Gupta 7 years, 5 months ago

√3(2kq^2 / a^2)

ANSWER

What is the derivation of electric flux

Posted by Shiva Rana 7 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Jaswanth Sai 7 years, 5 months ago

Number of lines of force passing through on area of cross section is know as eletric fluck

ANSWER

what is electrostatic series

Posted by Harsh Anshu 7 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Gaurav Choudhary 7 years, 5 months ago

Series in which charge enclude on different state is known as electro static

ANSWER

What is the unit of electrostatic force

Posted by A Singh 7 years, 5 months ago

CBSE > Class 12 > Physics

2 answers

A Singh 7 years, 5 months ago

No

Khushbu Suthar 7 years, 5 months ago

Coulomb per newton per meter squre

ANSWER

Proof coulomb law in vector form

Posted by Rishabh Rai 7 years, 5 months ago

CBSE > Class 12 > Physics

2 answers

Khushbu Suthar 7 years, 5 months ago

F=k q1 q2 /r2 r^

Vinay Singh 7 years, 5 months ago

F=kq1×q2/r^2

ANSWER

What is leaf electroscope

Posted by Ashish Kumar 7 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Rishabh Sahu 7 years, 5 months ago

A device used to test the presence of charge is a Golden Leaf electroscope,A pair of thin strips made up of gold is suspended from a small metallic rod in an insulating enclosure. The rod is connected to a metal ball on top of the enclosure . When the metal ball is charged the strip separate because the charge separates out over the metallic parts and so the two strips which accumulate like charges repel . However when a charged rod is brought near the wall of the electroscope , the strips still separate even without any contact between the rod and the electroscope and as the distance between the rod and electroscope is increased drop back the strips separate even when the electroscope remains neutral because the free electrons in the different parts of electroscope are pushed away and pile up in the strips which makes them similarly charged so they repel.

ANSWER

Is tuition is necessary

Posted by Malkeet Sraw 7 years, 5 months ago

CBSE > Class 12 > Physics

3 answers

Jaswanth Sai 7 years, 5 months ago

NO, you can learn you self bro... you have confindence on you ,,,all the best

Pinky Verma 7 years, 5 months ago

Very necessary to pass the exams

Vinay Singh 7 years, 5 months ago

Yes

ANSWER

Two bodies A and B carry charges of _3 micro coulomb and _0.44 micro coulomb How many electrons should be transfered from A to B so that they aquire equal charge

Posted by Samira Puri 7 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Rudresh Kumar 4 years, 6 months ago

8*10*12

ANSWER

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