Magnetic field due to currentHard
Question
A circular loop of radius 5cm is connected to a source which is providing current 10A as shown in diagram. The ratio of resistance of part ABC to the ADC is 3:4 then magnetic field at the centre ′O′ is-


Options
A.
B.
C.
D.
More Magnetic field due to current Questions
When a proton is released from rest in a room, it starts with an initial acceleration a0 towards west. When it is projec...A long cylindrical conductor with large cross section carries an electric current distributed uniformly over its cross-s...A particle of charge +q and mass m moving under the influence of uniform electric field and uniform magnetic field follo...At a certain place a magnet makes 30 oscillations per minute. At another place where the magnetic field is double, its t...A magnetic needle is made to vibrate in uniform field BH, then its time period is T. If it vibrates in the field of inte...