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Charge transfered by A = 25 Q ÷ 100 = Q /4....now final charge on A is Q - Q/4 = 3Q /4 nd charge was tranfered on B so final charge on B is -Q +Q / 4 = 3Q /4 [ HINT ]

1Thank You

Sneha Bansal 6 years, 3 months ago

Option 2nd is correct i.e. 9F/16

0Thank You

Eram Misbah 6 years, 3 months ago

3 rd option is correct...

0Thank You

Aman Kumar 6 years, 3 months ago

May be the option 2 or 3

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Nomaan Rja 6 years, 3 months ago

0Thank You

Aman Kumar 6 years, 3 months ago

Yrr mai 110% sure hu ki enn charo options mai se koi ek option toh sure hai.....?

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Ďãřşháñăã Yadav ? ? ? ✊ 6 years, 3 months ago

arrey my fault options are 1)F 2)9F/16 3)16F/9 4) 4F /3

1Thank You

Aman Kumar 6 years, 3 months ago

Ye 3rd and 4th option samajh nhi aya....ek baar samjha di

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ANSWER

A current of strength 0.4m is placed on along DA at the centre of the circle 0.10 m. Calculate the maagnetic field at point A,B,C,D

Posted by Kunal Kishor 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Jasnoor Grewal 6 years, 3 months ago

What r the units of strength of current here??

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Show mathematically that the potential at apoint on the equatorial line on an electric dipole is zero?

Posted by Saurabh Vishwakarma 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why do electric field not form closed loops

Posted by Vansh Kushwaha 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Jasnoor Grewal 6 years, 3 months ago

If the electric field forms closed loops then it will mean that the field lines start and end at same point,,which is not possible.

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Threshold frequency

Posted by Serie S 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Ďãřşháñăã Yadav ? ? ? ✊ 6 years, 3 months ago

The minimum frequency below which photo electric effect is not observed is called threshold frequency (vo )

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ANSWER

What is test charge

Posted by Priya Yadav 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Muskan Khan 6 years, 3 months ago

A charge which is very small in magnitude , it experiences force. By convention test charge is taken to be positively charged.

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ANSWER

What are point charge

Posted by Afsana Afsana 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Muskan Khan 6 years, 3 months ago

If distance of separation b/w two charges is much more compared to the magnitude of charges in such case the charges are treated as point charges.

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Which part of the electromagnetic spectrum is used in Radar? Gives its frequency range

Posted by Siddhant Singh 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Two charge of magnitudes +4q and -q are located at point (a,0) and (-3a,0). What is the electric flux due these charges througj a sphere of radius 2a with its center at the origin?

Posted by Akanksha Patwal 6 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Nishu Sahu 6 years, 3 months ago

Flux through sphere of radius 2a is 4q/£°

0Thank You

Jasnoor Grewal 6 years, 3 months ago

The sphere has a radius of 2a,,it implies that the sphere encloses the charge +4q which lies at (a,0) and not encloses -q which lies outside the sphere at (-3a,0). Thus the net flux will be due to +4q and is given by 4q/€°. {Flux is not affected by any charge present outside the domain of gaussian surface{

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What is net charge

Posted by Hrishi Vishwakarma 6 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Jasnoor Grewal 6 years, 3 months ago

Net basically means :- the algebraic sum of all terms involved along with their respective signs.

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Ďãřşháñăã Yadav ? ? ? ✊ 6 years, 3 months ago

net charge means total charge.

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Two infinite parallel planes have uniform charged densities sigma 1 and sigma 2. Determine the electric field at points. 1. To the left of the sheet 2. Between them 3. To the right of the sheets

Posted by Akshita Singh 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Jasnoor Grewal 6 years, 3 months ago

Can u tell about the signs of charge densities?

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Two identical metallic spheres A and B having charges +4Q and -10Q are kept at a certain distance apart. A third identical uncharged sphere C is first placed in contact with sphere A and then with sphere B. Spheres A and B are then brought in contact and then separated. Find the charges on the spheres A and B

Posted by Akshita Singh 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Eram Misbah 6 years, 3 months ago

First add the charge of sphere A nd C divide by 2 ...those will be charge of sphere A nd C ...now add charge of sphere B nd C which got when kept in contact wid A nd divide it by 2...those will be charge of sphere B nd C ....finally at last add the charge of sphere A nd B...which got when kept in contact wid respectively nd divide it by 2

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ANSWER

Two point charge q and +q at distance separate o and distance between them r. What is the electric potential

Posted by Ritika Saini 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Two positive point charges are placed at a distance a apart have sum Q.What value of the charges coulomb force between them is maximum?

Posted by Khushi Arora 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Prince Vishwakarma 6 years, 3 months ago

Q/2

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ANSWER

To what potential must an insulted sphere of radius 10cm be charged so that the surface density of charge is equal to 1microcoulomb

Posted by Aastha Bajiya 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Aastha Bajiya 6 years, 3 months ago

That is one microcoulomb per square meter

1Thank You

ANSWER

A conducting share of radias 10cm has unknown charge if the electric field is 1.5×10power 3 N/C at tge distance 20cm from the centre of sphare then waht is the net charge on sphare

Posted by Rahul Jangir 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A rod of copper having mass 1.0 kg is to be drawn into a wire having resistance 200 ohm .Find the length of a wire . Given resistivity of copper is 1.7*10^-8 ohm and density of copper is 8.9*10^3 kg m^-3

Posted by Prince Dhakar 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Can anyone make me understand that how the figure in question is same as given in ans...in example 58 of sl arora chapter 2 ???

Posted by ꧁≪Mämƭå ℭℏ۝ᑌĎℎàℜÿ? 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Poll

Posted by Rahul Jangir 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Manshu Drall 6 years, 3 months ago

??????

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ANSWER

Why electric field is Always negatively to positive charge

Posted by Rahul Pandey 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Aman Kumar 6 years, 3 months ago

Direction of the Electric field is always from positive to negation that is , in the direction of current......not negative to positive

5Thank You

ANSWER

Calculate the electrostatic potential energy of a system of three points charges q1 q2 and q3 located respectively at r1 r2 and r3 with respect to a common origin 0

Posted by Anjalisahu Anjali 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is capacitance in given network if capacitor is 5 microfarad

Posted by Surender Singh Verma 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Define magentic dipole .

Posted by Abhay Dixit 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Shital Gupta 6 years, 3 months ago

A magnetic dipole is the limit of either a closed loop of electric current or a pair of poles as the size of the source is reduced to zero while keeping the magnetic moment constant. It is a magnetic analogue of the electric dipole, but the analogy is not perfect.

1Thank You

ANSWER

Define columbs law

Posted by Yashwardhan Singh Parihar 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Rashi Srivastava 6 years, 3 months ago

Like charges repel &opposite charges attract with a force directly proportional to the product of charge & inverslyy proportional to the square of the distance b/ w them

2Thank You

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