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Important property of proton

Posted by Prem Maddheshiya 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Exponent of vectors

Posted by Saurabh Chauhan 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Why electric field lines r always curve??

Posted by Chitra Rawat 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Lakshmi Priya L 7 years, 1 month ago

No electric line of force exist inside the charged body therefore they don't form closed loop instead they are curved

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Formula for energy dissipated in the resistor

Posted by Harsimran K 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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What is spherical mirror?

Posted by Unnati Verma. Unnati Verma. 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Aman Keshari 7 years, 1 month ago

Spherical mirror is type of mirror it is curved in a shape of semi circle in which the ray reflect and make the angle of incident equal to the angle of reflection...........#

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Explain me right hand thumb rule

Posted by Hemashri Gogoi 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Mohd Ashar Khan 7 years, 1 month ago

In right hand thumb rule,thumb represents current and all four fingers represent magnetic field.

2Thank You

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Iast ten years quistion paper of physics with solution

Posted by Vikram Singh 7 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Mansi Sharma 7 years, 1 month ago

They are present in this app with solutions in last year question papers

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Kartik Iyer 7 years, 1 month ago

*question

3Thank You

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What is wavefront?

Posted by Akshay Satish 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Yuvedha T 7 years, 1 month ago

Wavefront-It is the locus of all the particles in a medium vibrating on same phase at a given instant In simple words,it is defined as a surfave of constant phase. For example u can take a photograph of ripples .

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What you say about earths magnetic field

Posted by Shiva Tiwari 7 years, 1 month ago

CBSE > Class 12 > Physics

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The focal length of the objective and eyepiece of a compound microscope of 1.25 cm and 5 cm respectively find the position of the object related to the object in order to obtain an acceleration of 13000

Posted by Haris Khan 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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A particle moves in a circle. Which force act on it

Posted by Pranav Jha 7 years, 1 month ago

CBSE > Class 12 > Physics

4 answers

Shivi Goyal 7 years, 1 month ago

Centripetal and centrifugal force

1Thank You

Chitra Rawat 7 years, 1 month ago

mv^2/r

0Thank You

Unnati Verma. Unnati Verma. 7 years, 1 month ago

Centripetal force act on it.

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Shiva Tiwari 7 years, 1 month ago

Centripetal

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What is oersted

Posted by Atish Patel 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Amr Jas 7 years, 1 month ago

Oersted is name of sciencetist

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Difference between diamagnetic, paramagnetic, and ferromagnetic substances?

Posted by Satyam Chimaniya 7 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Farah Naaz 7 years, 1 month ago

Paramagnetic substances are weakly attracted by electric field due to their unpaired electron. Diamagnetic substance are weakly repelled by magnetic field due to their paired electrons. Ferromagnetic substances are strongly attracted by magnetic field

1Thank You

Amandeep Kumar 7 years, 1 month ago

Paramagnetic substance are weakly attracted by the magnetic field.

1Thank You

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Which force is more attractive electrostatic or gravitational? Explain.

Posted by Rajneesh Sahu 7 years, 1 month ago

CBSE > Class 12 > Physics

5 answers

Adarsh Singh 7 years, 1 month ago

Electrostatic force is attractive force because it have tendancy to attract or repale the object where as gravitational force is weakest force it have tendency to attract the object only

0Thank You

Akhilesh Yadav 7 years, 1 month ago

Electro estatic force

5Thank You

Mohit Sepat 7 years, 1 month ago

Explaination A charged rod can lift a piece of paper against the gravitational force of earth on this piece

4Thank You

Mohit Sepat 7 years, 1 month ago

Electrostatic force is stronger

2Thank You

Navdeep Singh 7 years, 1 month ago

Electrostatic force

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How many times does the sun takes to shift 1°

Posted by Khushi Tripathi 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Mohit Sepat 7 years, 1 month ago

2 minutes

1Thank You

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Calculate potential difference using kirchoffs rule

Posted by Anushka Priya 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Mohit Sepat 7 years, 1 month ago

Kirchoff 2nd law is helpful in this

1Thank You

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Abdul wjole driviring to school,conputes the averagespeed for his trip to be 20km h-1onhis return uo

Posted by Ricky Kaushal 5 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

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At what minimum angle of incidence a ray of light may be incident on a prism of refracting angle 60 degree so that it can be transmitted .The refractive index of the meterial of the prism is √7/3.

Posted by Aman Kumar 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Can we said a moving coil galvanometer be an ammeter?

Posted by Shiva Tiwari 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Satyam Chimaniya 7 years, 1 month ago

No we can't say "the moving coil galvanometre" an "ammetre". But it can be converted into ammeter by connecting a shunt(S) parallel to galvanometre.(shunt एक low resistance होता है।) Shunt is used to convert a galvanometre into an ammetre. So we can say that ammetre is a parallel combination of shunt and galvanometre..

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What are electric dipole

Posted by Shivani Yadav 7 years, 1 month ago

CBSE > Class 12 > Physics

4 answers

Lakshmi Priya L 7 years, 1 month ago

It consists of a pair of equal and opposite charges separated by a finite distance.

0Thank You

Chitra Rawat 7 years, 1 month ago

Electric dipole is system of 2 equal nd opposite charge separated by a very small didtance 2a

0Thank You

Isha Taneja 7 years, 1 month ago

Arrangement of 2 equal and opposite charges separated by a finite distance is called electric dipole

1Thank You

Nitish Sharma 7 years, 1 month ago

2 equal and opposite charges placed at a distance apart forms an electric dipole

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the current through the wire varies with time as I=I0 + at, where I0 = 10A and a= 4As^-1. find the charge that flows across a cross section of the wire in first 10 seconds.

Posted by Divyam Singh 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Mohit Rajbhar 7 years, 1 month ago

I = dq/dt =10 + at dq = 10*dt + 4t*dt Integrating both side 0 to 10 sec Q= 10*10 + 4(10)²/2 = 100 + 200 = 300 C

1Thank You

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2019 exam blueprint

Posted by Siranjeevi Kumar 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Why wavelength of a light changes but the frequency remain same

Posted by Rijul Singhal 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Two long parrallel wire carries i and 2i current in same direction respectively . Magnetics field just between the wire is 'B'. If 2i current is switched off then magnetic field at the same point is

Posted by Raghav Mishra 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Mohit Rajbhar 7 years, 1 month ago

-B

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Is the topic of Nicol prism is in latest syllabus of cbse

Posted by Abd Fan 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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What is variable magnetic Flux?

Posted by Lipika Yadav 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Nitish Sharma 7 years, 1 month ago

Magnetic Flux =B.A and if the the magnitude of mag. Flux is changing w.r.t the distance then it is called as Variqble mag. Flux.

1Thank You

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What is ampere's circutal law

Posted by Swamy Jegisheeti 7 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Nivedita Yadav 7 years, 1 month ago

It state that line integral of magnetic field(B) around any closed path or circuit is equal to muo not times the total current threading to closed circuit.

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Aryan Rajput 7 years, 1 month ago

Line integration of B. dl =mue not

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Obtain an expression for the electric potential at a point at a distance r for a point charge Q

Posted by Ayushi Mishra 7 years, 1 month ago

CBSE > Class 12 > Physics