Basic Concept of Electricity MCQs

Lines of force

Magnetostriction in a phenomenon whereby the magnetisation of a ferromagnetic material leads to a change in

V B is based on

The Biot-Savart's law is a general modifi-cation of

The direction of mechanical force experienced on a current carrying conductor placed in a magnetic field is determined by

If a current carrying conductor is placed in a magnetic field, the mechanical force experienced on the conductor is determined by

The force experienced by a current carrying conductor lying parallel to a magnetic field is

An in finitely long conductor carrying a current is embedded in a semi-infinite medium of permeability pp as shown in the given figure. For itti > ja2, the conductor will experience

A straight conductor of length / moving with a velocity v in the presence of a magnetic field of flux density B directed at an angle 0 with the direction of v experiences a force. Which of the following statement(s) is/are true for the magnitude of the force? 1. It is independent of 0.2. It is proportional to /2. 3. It is proportional to B. 4. It is independent of v. Select the correct answer from the codes given below :Codes :