Recent activity in 12th Physics

0 votes

0 answers

A square conducting loop is placed in the time varying magnetic field `((dB)/(dt)=+'ve constant')`.The centre of square coincides with axis of cylindrical region of magnetic field. The directions of induced electric field at point a, b and c.Consider a conducting circular loop placed in a magnetic field as shown in figure. When magnetic field changes with time, magnetic flux also changes and emf `e=-(dphi)/(dt)` is induced. If resistance of loop is R then induced current is `i=e/R`. For current, charges must have non–zero average velocity. Magnetic force cannot make the stationary charges to move. Actually there is an induced electric

edited Jul 24, 2023 in 12th Physics by varun (6.7k points)

0 votes

0 answers

12th ncert physics chapter 1

asked Jul 24, 2023 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Syllabus for chapter-2 cbse 2020-22 Chapter–4: Moving Charges and Magnetism

asked Sep 3, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Syllabus for chapter-2 cbse 2020-22 Unit II: Current Electricity 18 Periods Chapter–3: Current Electricity

asked Sep 3, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Syllabus for chapter-2 cbse 2020-22 Electric potential and Capacitance

asked Sep 3, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A charged rod is brought near a negatively charged pith ball electroscope. What conclusion would you draw about the charge on the rod if pith ball moves away from the rod ?

edited Mar 22, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Define dielectric constant of a medium. What is its S.I. unit?

edited Mar 22, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

12th NCERT Chapter1 intro

retagged Mar 22, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

When a body induces charge on another body without touching

edited Mar 22, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Charging by conduction is possible in

edited Mar 22, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Which of the charges are possible?

edited Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

According to additive property of charges

edited Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

How many protons are there in

edited Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

What is permittivity of free space, permittivity and relative permittivity.