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Displacement of interference fringes.... Should we do this topic or not?

Posted by Ash Ash 7 years, 3 months ago

CBSE > Class 12 > Physics

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If Carbon-resistor has resistance 0.4ohm. Find colour on this resistance

Posted by Bhavya Jain 7 years, 3 months ago

CBSE > Class 12 > Physics

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Two electric bulbs P and Q their resistance in the ratio of 1 ratio 2 they are connected in series across a battery find the ratio of the power dissipation in these bulbs

Posted by Sahil Dagar 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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1 electron is equal to

Posted by Shashwat Mishra 7 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Dhruv G 7 years, 3 months ago

e=1.6x10^(-19) Coulomb

2Thank You

Aryan Rajput 5 years, 8 months ago

Another 1 electron simple ...

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Refractive index of glass is 1.5 in air .obtain the critical angle for glass air interface.?

Posted by Fayaz Ahmad 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Malay Gupta 7 years, 3 months ago

If C is the critical angle for glass,then u=1/sinC or,. sinc=1/u. =1/1.5 =0.6667 or,. C=41.8°

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amplitude derivation

Posted by Gautham S 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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Why magnetic field lines are curved in nature

Posted by Sudhanshu Parth Sarthi 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Lipak Mohapatra 7 years, 3 months ago

Due to Conservative nature They can contact Non existence of mono pole Presence of lateral pressure at each pole

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Four difference between conductors insulators dielectrics

Posted by Sajanpreet Kaur 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Sia ? 4 years, 6 months ago

The conductor is the type of material which allows the electric current or heat to pass through it whereas the insulator does not allow the electric current or heat to pass through it. The thermal conductivity of the conductor is high, whereas the thermal conductivity of the insulator is low.

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What is the self inductance an of air core solenoid 50cm long and 2 cm radius if it has 500turns

Posted by Neha Gupta 7 years, 3 months ago

CBSE > Class 12 > Physics

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Why power is zero in inductor and capacitor

Posted by Amam Singh 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Manvi Sharma 7 years, 3 months ago

Angle is 90 degree between current &emf

3Thank You

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Torque on a current carrying loop placed in magnetic field

Posted by Arshi Sood 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Mohd Zeeshan Razaa 5 years, 8 months ago

Torque = iA

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How does resistivity of the material of a conductor depends on temperature?

Posted by Pratik Sarkar 7 years, 3 months ago

CBSE > Class 12 > Physics

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Find the expression for the energy stored in a parallel capacitor

Posted by Pratik Sarkar 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Manan Bedi 7 years, 3 months ago

1/2CV^2

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Binding energy curve

Posted by Abhishek Singh 7 years, 3 months ago

CBSE > Class 12 > Physics

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Limitations of ohm's law

Posted by Nikhil Kaushik 7 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Mohd Zeeshan Razaa 7 years, 3 months ago

All the physical properties (atmospheric pressure, temprature) of materials should be constant.....

0Thank You

Yogita Ingle 7 years, 3 months ago

Limitations of Ohm's Law:
Ohm's law is not a fundamental law of nature. There are a number of commonly used circuit elements which do not obey this law called Non – Ohmic conductors.
Non – Ohmic conductors have one or more of the following properties:
1. Potential difference (V) depends on current (I) non-linearly.
2. The relation between V and I is non-unique, that is, for the same current I, there is more than one value of voltage V.
3. The relationship between V and I depends on the sign of V f or the same absolute value of V.

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Using the concept of free electrons in a conductor, derive the expression for the conductivity of a wire in terms od number density and relaxation time. Hence the relation between current density and the applid electrc field E.

Posted by Yash Kharwar 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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Some one tell me how to study wave optics in one night.??tommarow is my exam???

Posted by Pratibha Ydv 7 years, 3 months ago

CBSE > Class 12 > Physics

3 answers

Amandeep Kumar 7 years, 3 months ago

Leave optics .. And focous on whatever you read

0Thank You

Shivam Verma 7 years, 3 months ago

Prepare huygens and young most imp

1Thank You

Pinky Verma 7 years, 3 months ago

Impossible

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Elecric dipole

Posted by Nishant Tamrakar 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Abhinav Sharma 7 years, 3 months ago

Two equal and opp. charges(+q and -q) separated by a small distance (2a)

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Hyyyy guys

Posted by Sanoj S Nair 7 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Sanoj S Nair 7 years, 3 months ago

Yes.....you

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Saran S 7 years, 3 months ago

Malayalee?

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what is displacrment current

Posted by Aatif Khan 7 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Saran S 7 years, 3 months ago

Displacement current represents the change in magnetic field caused due to an oscillating electric field. Displacement currernt is equal to conduction current, but flows between the plates of a capacitor.

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Pranshu Gupta 7 years, 3 months ago

density is the quantity ∂D/∂t appearing in Maxwell's equations that is defined in terms of the rate of change of D, the electric displacement field.

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why must both the objective and eye piece of a compound microscope have short focal length

Posted by Rohan Khokhar 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Aisha Gupta 7 years, 3 months ago

Because magnificaton is greator with shorter focal length

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Emf

Posted by Sachin Thakur 7 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Deepak Jindal 7 years, 3 months ago

Electromotive force

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Aryan Rajput 7 years, 3 months ago

Electomotive force

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On which principal moving coil galvanometer work ?

Posted by Yash Kharwar 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Yogita Ingle 7 years, 3 months ago

Moving coil galvanometer is an electromagnetic device that can measure small values of current. It is also known as Weston galvanometer.
It works on the principle that when a current loop is placed in an external magnetic field, it experiences torque, and the value of torque can be changed by changing the current in the loop

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State the third law of motion

Posted by Pulkit Singh 7 years, 3 months ago

CBSE > Class 12 > Physics

3 answers

Ayushi Kumari 7 years, 3 months ago

Newton's third law of motion: Every action there is a equal and opposite reaction.

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Yogita Ingle 7 years, 3 months ago

First Law (Law of Inertia): Everybody continues in its state of rest or of uniform motion in a straight line unless it is compelled by some external force to change that state.

Second Law: The rate of change of momentum of a body is directly proportional to the impressed force and takes place in the direction of the force.

So, F= dp/dt

This results force acting a body F is equal to the mass of the body m times acceleration of the body a.

So, F = ma

Third Law: To Every action there is an equal and opposite reaction.

FAB = - FBA

1Thank You

Yash Kharwar 7 years, 3 months ago

newtons third law states that "every action has an equal and opposite reaction". the reaction will be opposite to the direction of action but it is equal in magnitude of force with which action is done.

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Why must electrostatic field at surface of charged conductor be perpendicular to every point on it

Posted by Gaurav Shrivastav 7 years, 3 months ago

CBSE > Class 12 > Physics