A magnetic field is said to exist at a point if a force i...
A magnetic field is said to exist at a point if a force is
exerted on a stationary charge at the point
exerted on a moving charge at the point
deflected at the point
strengthened at the point
Correct answer is B
A charge in motion always experienced a force on entering a magnetic field
Which of the following is used for shielding radioactive fall-outs? ...
The conclusive test for magnetism in a steel bar suspended horizontally at its midpoint is...
A parallel plate capacitor is charged and the charging battery is subsequently disconnected. lf...
The magnetic relay is a device used for ...
"Sum of all forces acting on a body is zero." This condition represents equilibrium' ...