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  • 4 answers

Řøhăň Řąjpůť ✌️✊ 6 years, 3 months ago

hahha material which allow electricity to pass through them easily is known as conductor and material which do not alllow electricity to pass through them are known as insulator.

Aman Kumar 6 years, 3 months ago

Or u can say.,,, That those objects which offers very low resistance to current is called conductors and those objects which offers very high resistance to current is called Insulators

Ďãřşháñăã Yadav ? ? ? 6 years, 3 months ago

the object which allow current to pass through them are known as conductor where as insulator are the object which do not alllow current to pass through them.

Aman Kumar 6 years, 3 months ago

Those objects/body which allow current to pass easily through it without any opposition is called Conductor.......Those objects /body which does not allow current to pass through it is called Insulators....
  • 2 answers

Rohan Jaiswal 6 years, 3 months ago

According to this principle when any of the factor affecting rate of chemical equilibrium is altered. The equilibrium will shift in that direction so as to minimize the change impose

Ďãřşháñăã Yadav ? ? ? 6 years, 3 months ago

here force is equal so 1/4πξο.q1q2/r²=1/4πξο .q1q2/kr²_______ 1/r²=1/kr² from here we get our new distance r(new) =r/underoot k.
  • 0 answers
  • 4 answers

Řøhăň Řąjpůť ✌️✊ 6 years, 3 months ago

? ? ? kaha type ker gyi .. ? ? ?

Ďãřşháñăã Yadav ? ? ? 6 years, 3 months ago

mai ni change Kerne wali tu kerega maine phale se he ye topic choose ker Liya tha.

Řøhăň Řąjpůť ✌️✊ 6 years, 3 months ago

kya baat hai value put ker ke bta deti. lazy person ... ? ? ? vese gud one ✌️

Ďãřşháñăã Yadav ? ? ? 6 years, 3 months ago

1) |E| = τ/qdsinθ = 6 underoot 3/0.1×10^-3×0.5 solve this u will get 3.46×10⁴ N/C which will be ur answer. Now 2nd part of the question... we know that τ= PE sinθ nd potential energy U = - PEcosθ by dividing these two we get τ/u = - tanθ. put the value in it u will get ur answer.
  • 1 answers

Sia ? 6 years, 3 months ago

When we use a circular coil and a cylindrical magnet the magnetic field will always be perpendicular to the area vector due to which sin wt which wil be sin90 gives 1 thus giving maximum linking of flux assosciated with the coil at any position.

  • 4 answers

Adarsh Deep Gupta 6 years, 3 months ago

The potential difference between both terminal of cell when no current is flow or circuit is open is called EMF

Nishu Sahu 6 years, 3 months ago

Emf is defined as work done in taking a unit positive change from lower potential to higher potential.

Rahul Gupta 6 years, 3 months ago

It is an electromotive force which take positive charge from negative potential and give it to the positive potential.

Anshika Sharma 6 years, 3 months ago

Emf is electron motive force. That expirenced by electrins during flow.
  • 1 answers

Rahul Gupta 6 years, 3 months ago

1. Charge must lie inside the guassian surface. 2. Every point on guassian surface must be equidistant from the charge.
  • 1 answers

Sia ? 6 years, 3 months ago

{tex}\phi = \frac{q}{\epsilon}{/tex}
where, {tex}\phi{/tex} is electric flux,
q is the net charge
Since dipole has +q and -q charges
Therefore, the net charge is 0. 
Therefore, {tex}\phi = \frac{0}{\epsilon}{/tex}=0

  • 1 answers

Ďãřşháñăã Yadav ? ? ? 6 years, 3 months ago

The particles of colloid are large enough to scatter a beam of light passing through it and make its path visible. Thus, this is know as Tyndall effect.
  • 1 answers

Abhinav Singh 6 years, 3 months ago

Those device which does not obey ohm's law Vaccum tubes Liquid electrolyte
  • 1 answers

Nishu Sahu 6 years, 3 months ago

Electric current constitutes electrons.
  • 1 answers

Himanshu Arya 6 years, 3 months ago

20question objective come in paper 1marks
  • 1 answers

Ďãřşháñăã Yadav ? ? ? 6 years, 3 months ago

it states the magnetic intensity at any point due to a steady current in an infinitely long straight wire is directly proportional to the current and inversely proportional to the distance from point to wire .
  • 4 answers

Anshika Sharma 6 years, 3 months ago

Clones

Abhimanyu Kaul 6 years, 3 months ago

Thanks ❤️

Aman Kumar 6 years, 3 months ago

No...its an individual investigatory project

Priya Dharshini ? 6 years, 3 months ago

No i think so... it is individual project
  • 1 answers

Yogita Ingle 6 years, 3 months ago

  • Cyclotron is a device used to accelerate charged bodies to very high velocities (or high kinetic energies) using crossed (or mutually perpendicular) electric and magnetic fields
  • Cyclotron is based on the independency of frequency (of rotation of charged particle) on the energy (velocity) and radius (of revolution) of charged particle. The motion of charge , electric field, and the magnetic field are mutually perpendicular(θ= 90°), so:

fc = 1/T = qB(sinθ)/(2πm) = qB/(2πm)

  • Cyclotron is made up of 2 hollow metallic discs D1 and D2, semi-circular in shape and an oscillator.
  • The discs(D) perform mainly 2 functions: a) to block(shield) electric field inside it (known as electrostatic shielding) b) act as a capacitor outside the region between the 2 discs to provide some electric field
  • The oscillator’s job is to reverse the direction of electric field at the time interval of eachrevolution of charge, meaning frequency of oscillator fo should be same as the frequency of cyclotron fo.It is because when the charge moves from one D to another, the direction of electric field should always be such that the charge always accelerates(and never decelerates)
  • 2 answers

Sia ? 6 years, 3 months ago

R={tex}\rho{/tex}L/A
R={tex}\rho{/tex} 5%L/A/5%
R={tex}\rho{/tex}25%(L/A)
R=25%({tex}\rho{/tex}L/A)
R=25%R'

Gurman Kaur 6 years, 3 months ago

As the wire is streched its length inc but area of cross section dec,the change in resistance due to both inc in length and dec in area R={rho} l÷a V=A×L A=V÷l R=[rho] l sq.÷V R=L sq. [For initial] R'=l''(for final) R'÷R= l'÷l whole sq.=0.05sq. R'÷R =0.0025 Inc in % of resistance R'-R÷R×100 (0.0025-1)×100 = 9%inc
  • 8 answers

Aman Kumar 6 years, 3 months ago

Thanks yarr?..ook see at the top ...there I am asking question

Priya Dharshini ? 6 years, 3 months ago

U can ask differentiation chapter... i am doing that chapter only now..

Priya Dharshini ? 6 years, 3 months ago

I know hindi, it was my second language from begining onwards...... i am comfortable in typing english than hindi, i can speak in hindi v.well being in north states i am used to it..

Aman Kumar 6 years, 3 months ago

I have doubt in differentiation chapter

Priya Dharshini ? 6 years, 3 months ago

Ya sure u can ask ur maths doubt. I am maths student only.... let me know which chapter u have doubt

Priya Dharshini ? 6 years, 3 months ago

Thanks a lot....i will solve it now ?☺☺

Aman Kumar 6 years, 3 months ago

Sequence dekh lena bus...?

Aman Kumar 6 years, 3 months ago

Mass of gold = 197.97 ~= 198 amu. therefore Moles of gold in 1.0 gm = 1/M No. of atoms in 1.0 gm gold = (1.0/M) × 6.022×10^23 .....Atomic no of gold = electrons in one gold atom = 79. Therefore, charge on whole 1.0 gm = (1/M).An.79 Calculate 1% of above. charge (1/M).An.79.(0.01) = 0.024 ×10^23 therefore charge carried by 1% of electrons = 0.024 × 10^23 ×(-1.6 × 10^-19 C)
  • 1 answers

Vinay Ranjan 6 years, 4 months ago

It is a device used to measure an unknown EMF or POTENTIAL DIFFERENCE accurately....
  • 3 answers

Priya Dharshini ? 6 years, 3 months ago

I wrote this only in exam.. What is book answer not urs, everyone prepare from book only. I read this ans and prepared. U asked same.question so i gave answer....

Shivam Bhardwaj 6 years, 4 months ago

This is book language not your's

Priya Dharshini ? 6 years, 4 months ago

1.This is done to leak any charge to the ground that develops on the tyres during take-off or landing of the aircraft.2.When the vehicle is in motion,due to friction in air,the body of the vehicle gets charged.if accumulated,charge becomes excessive,sparking May occur and inflammable materials may catch fire.therefore metallic chains touching the ground are introduced so that the charge quickly leaks to the earth.hence the danger of fire is avoided... so,vehicles carrying inflammable materials usually have metallic ropes touching the ground.....
  • 1 answers

Abhinav Singh 6 years, 4 months ago

Concentric circles
  • 2 answers

Sia ? 6 years, 4 months ago

Electric flux {tex}{\phi _E}{/tex} is given by
{tex}{\phi _E} = \oint {\overrightarrow E } \cdot \overrightarrow {ds} = \frac{Q}{{{\varepsilon _0}}}{/tex}
where {tex}\theta{/tex} is total charge inside the closed surface.
{tex}\therefore{/tex} On changing the radius of sphere, the electric flux through the Gaussian surface remains same.

Amisha Shrivastava 6 years, 4 months ago

Electric Flux is independent or size and shape of the gaussian surface. It depends on the magnitude of charge enclosed within the surface.
Therefire,on changing radius electric flux will remain same.

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