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A metallic rod held horizintally along east-west direction, is allowed to fall under gravity. will there be an emf induced at its end ? justify you answer

Posted by Sourav Dhami 7 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Lalit Yadav 7 years, 6 months ago

Yes. e = blvcos0 due to horizontal component of earth

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In both beta -ve and beta +ve decay processes, the mass number of a nucleus remains same whereas the atomic number Z increases by one in beta -ve decay and decreases by one in beta +ve decay. Explain, giving reason.. please please help

Posted by Yuthika Yadav 7 years, 6 months ago

CBSE > Class 12 > Physics

2 answers

Madhav Rathod 7 years, 6 months ago

Since the mass of B- particle is negligibly small and atomuc no. Inc by one due to loss of 1 negative charge Similarly for B+ decay a B particle is negligibly small and +1 charge is emitted . The mass no. Remains same but here the atomic no. Decreases by 1 due to lose of 1 positive charge. ?

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Madhav Rathod 7 years, 6 months ago

I know

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How capacitor is used as filter for converting ac voltage to dc voltage in full wave rectifier. ?

Posted by Sachin Negi 7 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Yuthika Yadav 7 years, 6 months ago

It allows ac to pass through it as provide low rectance to it while hence ac passes through it when connected in parallel.

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three charge Q q and q are placed on the vartice of a right anlgled isosceles triangle perpendicular side of lenght a each . find the charge Q which the net electrostatic energy us zero

Posted by Dibya Modi 7 years, 6 months ago

CBSE > Class 12 > Physics

0 answers

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Why electric line never cross to each other

Posted by Shivani Sonani 7 years, 6 months ago

CBSE > Class 12 > Physics

5 answers

Madhav Rathod 7 years, 6 months ago

Thank you Namami???

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Namami Shukla 7 years, 6 months ago

.??What an answer madhav???

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Madhav Rathod 7 years, 6 months ago

They never intersect just like saas bahu ya deraani jethaani?

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Namami Shukla 7 years, 6 months ago

If electric field lines will cross each other then there will be two different values of electric field with their own individual direction at that single point which is not possible

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Sachin Negi 7 years, 6 months ago

Because if they cross each other so their will be two directions of Electric field which is not possible.

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Circuit solve ni ho raa h ...kirchaurfs rule kaise use hoti h....??

Posted by Akash Agarwal 7 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Madhav Rathod 7 years, 6 months ago

Easy h yrr.Just concentrate. Pehle sabse easy vale krr. Phir sabse jyada difficult vale kr. Then moderate vale krr. Bas concept samj le . You will master in it.

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Happy holiiii guyzzz

Posted by Chauhan Girl 7 years, 6 months ago

CBSE > Class 12 > Physics

2 answers

Madhav Rathod 7 years, 6 months ago

#holiwithboards

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Namami Shukla 7 years, 6 months ago

Same to u dear....

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A resistamce of R omega draws current from potentiometer as shown. It has total reaistance Ro ohmega A voltage V is supplied to the potentiometer derive exredsion for voltage acroass R

Posted by Bhavya Sharma 7 years, 6 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why cores of transformer are laminated. ?

Posted by Sachin Negi 7 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Madhav Rathod 7 years, 6 months ago

TO REDUCE EDDY CURRENT.

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What is displacement current in capacitor

Posted by Aditya Kumar 7 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Madhav Rathod 7 years, 6 months ago

The current came into existence when electric field and electric flux changes with time. ?

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nichrome and copper wire has same radius nd r connected in series .Current I is passes through them.Which of them gets heat more?

Posted by Noor Sran 7 years, 6 months ago

CBSE > Class 12 > Physics

2 answers

Lalit Yadav 7 years, 6 months ago

*resistivity

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Lalit Yadav 7 years, 6 months ago

Nichrome wire will be heated more because it's resistance is more than copper wire

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Bohr magnetron

Posted by Tarushi Gaure 7 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Yuthika Yadav 7 years, 6 months ago

Unit of magnetic moment of an electron

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What is the effect of increasing resistance on the sensitivity of a potentiometer?

Posted by Naina Vashishth 7 years, 6 months ago

CBSE > Class 12 > Physics

2 answers

Naina Vashishth 7 years, 6 months ago

Actually first of all there are two methods of increasing the sensitivity of a potentiometer the first one is increasing the length of the wire and the second one is increasing the resistance in case the length of the wire is constant so you cannot change in length I am asking you what is the effect of increasing resistance on the sensitivity of Potentiometer

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Khushboo Rajvansh 7 years, 6 months ago

On increasing resistance length Inc. =potential gradient Dec =sensitivity Inc.

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What is the frequency range of standard AM broadcast???

Posted by Yuthika Yadav 7 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Naina Vashishth 7 years, 6 months ago

540-1000kHz

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Angle of minimum deviation

Posted by Sunil Dhami 7 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Prince Sharma 7 years, 6 months ago

60°

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Relation between refractive index, wavelength and frequenciy?

Posted by Shamika Sahu 7 years, 6 months ago

CBSE > Class 12 > Physics

0 answers

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First and second focal lengths of a spherical concave surface of refractive index n are F1 and F2 respectively.the relations between them will be?

Posted by Chandan Singh 7 years, 6 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is colums law derive

Posted by Shibu Tiwari 7 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Jass Mangla 7 years, 6 months ago

The force between the two point objects places at a distance is directly proportional to the product of the charges and is inversely proportional to square of its radius .............. Jo definition hai usse alphabet form me likhlo charges Ko q1n q2 lalo or radius Ko r proportionality constant k

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Explain different types of magnetic materials

Posted by Rakhee Sharma 7 years, 6 months ago

CBSE > Class 12 > Physics