Karnataka PUC II Electromagnetism — practice questions
14 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Karnataka PUC II Electromagnetism in the app →The force on a charge q moving with velocity v in a magnetic field B (Lorentz magnetic force) isThe SI unit of magnetic field B isA current-carrying straight wire of length l in a magnetic field B experiences force of magnitudeBiot–Savart law gives the magnetic field dB due to a current element I dl asAmpere's circuital law in integral form statesA charged particle moving perpendicular to a uniform magnetic field follows aThe magnetic field at the centre of a circular loop of radius R carrying current I isInside an ideal infinite solenoid with n turns per unit length carrying current I, the magnetic field isThe magnetic field at distance r from a long straight wire carrying current I isTwo long parallel wires carrying currents I₁ and I₂ in the SAME direction experience a force per unit length tA proton moves with velocity 10⁶ m/s perpendicular to a uniform B = 0.5 T. Radius of its circular path is apprA magnetic field can do work on a moving chargeTwo equal and opposite charges moving with the same velocity in a uniform B experienceThe cyclotron frequency of a particle in a uniform magnetic field B is