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Suraj Mishra 1 day, 10 hours ago

The Voltmeter basically measures the Potential Difference between two electrodes. ... That's why it is not used to measure the e.m.f. of the cell. Now, Potentiometer measures the e.m.f. of the cell, which is nothing but the open circuit voltage of the cell.
  • 1 answers

Shikha Singh 1 day, 10 hours ago

If you ever have noticed in winters ,our nose , fingers tips are cooler than rest of our body(even being at the same condition) Pointed things relalease out energy or we can say looses energy at higher rate than curved ones
  • 2 answers
Since image distance is negative, image is formed at the same side of mirror as the object at a distance greater than 2f. Magnification is given by: m=−vu<0. Hence, theimage formed is real.

Adi Magotra 2 days, 17 hours ago

Hello
  • 2 answers

Anurag Saral 4 days, 13 hours ago

What Google says: p and n type materials are NOT positively and negatively charged. An n-type material by itself has mainly negative charge carriers (electrons) which are able to move freely, but it is still neutral because the fixed donor atoms, having donated electrons, are positive. Similarly p-type material by itself has mainly positive charge carrier (holes) which are able to move relatively freely, but it is still neutral because the fixed acceptor atoms, having accepted electrons, are negative.

Anurag Saral 4 days, 13 hours ago

My Answer: p and n type semiconductor are not actually +vely and -vely charged... as in n type electrons move towards p type due to which the donor atom acquires + and in p type acceptor holes acquire - which makes it neutral.
  • 1 answers

Shikha Singh 1 day, 10 hours ago

If are talking about charge of electron then it is always negative.....in some situations the polarity of charge does not matter whether the charge is negative or positive Like while calculating electric force and electric field intensity we only consider the magnitudes of the charges
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: It is because a broad source is equivalent to a large number of narrow sources lying close to each other. Different pairs of narrow sources willproduce their own interferencepatterns which will overlap each other

Nik . 5 days, 15 hours ago

Hi
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Professor Matemáticas 5 days, 21 hours ago

In this question Rate of change of area of Circular loop is not constant But Rate of change of area of rectangular loop is constant Please Explain Why Rate of change of area of Circular loop is not constant and why rate of change of area of rectangular loop is constant
  • 3 answers

Saloni Kaushik 3 days, 23 hours ago

W=delV ×q and delV=0 as V in an equipotential surface is same

Nidhi Bharti 6 days, 9 hours ago

This is because potential over the equipotential surface is same everywhere and work done is given by the formula: ( Work done = q∆V) and as ∆V is 0 so work done will also be zero

Manvi Gupta 6 days, 12 hours ago

Because potential is same at every point on equipotential surface. W/q=Vb-Va Vb=Va So,W/q=0 W=0
  • 4 answers

Saloni Kaushik 3 days, 23 hours ago

9×10^-23 N

Nik . 5 days, 15 hours ago

Force ka value puch rhi hai type nhi

Anuradha Patwari 5 days, 18 hours ago

Which is of four types

Anuradha Patwari 6 days, 13 hours ago

Neclear force
  • 5 answers
Nothing is hard, it just depends upon your understanding and intrest.
Physics

Gungun Yadav 1 week ago

chemistry organic

Yashika Chhikara 1 week, 1 day ago

Chemistry

Khilendra Sahu 1 week, 1 day ago

My choice is physics and your
  • 2 answers

Anuradha Patwari 1 week, 1 day ago

Pn junction diode

Nik . 1 week, 1 day ago

.
  • 2 answers

Nik . 1 week ago

.

Shivam Pal 1 week, 3 days ago

Temperature , wavelength of light
  • 4 answers

Khilendra Sahu 1 week, 1 day ago

Thanks to all

Rahul Kumar Keshri 1 week, 2 days ago

Theory padhne se sath sath formula ko bhi yaad karte jao aur samajh kr yaad karo...

Ashutosh Tiwari 1 week, 3 days ago

Make a formula Dairy of those subjects that are hard for you and revise them constistency

Nik . 1 week, 4 days ago

Make a special note of formula only and provide 10-15 minute daily on learning it
  • 3 answers

Rahul Kumar Keshri 1 week, 2 days ago

Due to accelerating charge particle..

Anuradha Patwari 1 week, 4 days ago

Correct answer

Nidhi Bharti 1 week, 5 days ago

Oscillating electric field And magnetic field perpendicular to each other, leads to the electromagnetic wave formation.
  • 5 answers

Nidhi Bharti 1 week, 3 days ago

F/16

Nikita Chauhan 1 week, 4 days ago

Force remains same

Srijan Saxena 1 week, 4 days ago

Force will remain same

Anuradha Patwari 1 week, 5 days ago

4 time

Anurag Saral 1 week, 5 days ago

Force when magnitude of charge is same F=q^2/4(pi)(Eo)r^2 if charges are halved and distance is doubled then F=q^2/64(pi)(Eo)r^2

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