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Akash Agarwal 8 years ago

OK thank you... I Will watch...

Ritu Gupta 8 years ago

I personally suggest you to watch the lecture of pradeep kshetrpal. He done it so well and in easiest way. I had also watched. But I can't explain you here.

Akash Agarwal 8 years ago

BT I did .but not getting the same result mentioned there.

Ritu Gupta 8 years ago

Use (sin square x= 1-cos2x/2)

ANSWER

What is the use of radial magnets in Galvanometer?

Posted by Hitesh Kumar 8 years ago

CBSE > Class 12 > Physics

5 answers

Ritu Gupta 8 years ago

So that torque will become independent of theta.

Radhika Tyagi 8 years ago

It makes maximum magnetic field to pass through it thereby showing greater deflection

Hitesh Kumar 8 years ago

What is the benefit of doing so.????

Vivek Gupta 8 years ago

It keep the plane always parallel to the direction of magnetic field

Vivek Gupta 8 years ago

It keep the plane always parallel to the direction of magnetic field

ANSWER

Reflecting telescope parts???

Posted by Priya Prakash S 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Lens used in refracting telescope

Posted by Priya Prakash S 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Define 1 ampere.

Posted by Hitesh Kumar 8 years ago

CBSE > Class 12 > Physics

2 answers

S N Parwe 8 years ago

When 1 columb charge flows through a conductor per second then the current in it is said to be 1 Ampere

Ishu Chouhan 8 years ago

When a force of 2 ×10-7 N experienced by two parallel wires of unit length separated by distance of 1 m ,then current will flow through between will be 1 amphere

4Thank You

ANSWER

Why is it necessary that the field lines from a point charge placed in the vicinity of a conductor must be normal to the surface of the conductor at every point

Posted by Akhil Hedau 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Marking scheme for physics examination 12th

Posted by Haridev G 8 years ago

CBSE > Class 12 > Physics

1 answers

Ishu Chouhan 8 years ago

Go through Google

ANSWER

Is Van De graft generator is important?

Posted by Aman Narain 8 years ago

CBSE > Class 12 > Physics

3 answers

Namami Shukla 8 years ago

Van de Graff generator has been deleted from cbse

Rochie Joshi 8 years ago

Not in cbse syllabus

Ashish Anand 8 years ago

No fo! Board exams .

ANSWER

Is there important to read all chapters for board exam to scoring full marks

Posted by Nafisa Naaz 8 years ago

CBSE > Class 12 > Physics

1 answers

Ishu Chouhan 8 years ago

Obviously

ANSWER

What is polarisation vector?

Posted by Aman Narain 8 years ago

CBSE > Class 12 > Physics

1 answers

Hany Sharma 8 years ago

Electric field

ANSWER

Radioactive sample has activity of 10000 dps after 20 hour. After next 10 hour its activity reduces to 5000 dps .find its half life and initial activity.

Posted by Darshan Brar 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Weightage of each chapter of each question of pcmb cbse board 2017-18 question paper

Posted by Utkarsh Sharma 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

AB is 2 metre long uniform wire of 20 ohm resistance The Other data is shown in the circuit diagram given below calculate the potential gradient along AB nd the length of AO wire, when the Galvanometer shows no deflection

Posted by Isha Jindal 8 years ago

CBSE > Class 12 > Physics

1 answers

Muskaan Gugnani 8 years ago

Ckt diagram???

ANSWER

Why FM is better than AM

Posted by Harshit Kothari 8 years ago

CBSE > Class 12 > Physics

1 answers

Hina Siddiqui 8 years ago

Fm transmission is highly efficient than am & Noise prblm in fm is less than am

ANSWER

Optical and radio telescope are built on the ground while x ray astronomy is possible only from satellite orbiting the earth?

Posted by Rishabh Khare 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Define magnetic dipole &magnetic dipole moment

Posted by Abhi Aahi 8 years ago

CBSE > Class 12 > Physics

2 answers

Hitesh Kumar 8 years ago

A magnetic dipole is the limit of either a closed loop of electric current or a pair of poles as the dimensions of the source are reduced to zero while keeping the magnetic moment constant.

Hitesh Kumar 8 years ago

Magnetic Dipole Moment is defined as the product of pole strength and the distance between the two poles.

ANSWER

What is remote sensing. How it works.

Posted by Abhi Kumar 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Total theory part Kitne marks ka aata hai jisme so hamse koi cheej define krvaye Ya uske bare m btane ko puche ex- what is law of this and this

Posted by Yug Singhal 8 years ago

CBSE > Class 12 > Physics

1 answers

Pranjali Mahajan 8 years ago

Sirf 10-15 marks numerical aate hai Aur baki pura theory hota that u mentioned and derivation

ANSWER

Total numericals Kitne marks m aate h

Posted by Yug Singhal 8 years ago

CBSE > Class 12 > Physics

1 answers

Hina Siddiqui 8 years ago

ANSWER

Kya kuch aese topics Ya questions h jo pakka aayenge

Posted by Yug Singhal 8 years ago

CBSE > Class 12 > Physics

3 answers

Pranjali Mahajan 8 years ago

U watch aman dhattrawal videos u will get idea about that

Tejas Patil 8 years ago

Sorry i was thinking for class 9

Tejas Patil 8 years ago

Physics :- all laws of motion ,gravitation and of all chapters

ANSWER

What is sight communication

Posted by Yug Singhal 8 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why do electric field line never cross each other

Posted by Shahzeb Mallick 8 years ago

CBSE > Class 12 > Physics

2 answers

Abhi Kumar 8 years ago

If two lines of forces intersect with each other than two tangent can be dawn at the point of intersection. It means there are two direction of field intensity at the same point which is physically not possible. So such intersection are not possible

Padmini Soni 8 years ago

Because if they will cross each other compass will point at two different directions which is not possible