Question

describe an activity to show that magnetic field is generated around a straight current carrying conductor

Answer 1

Take a compass towards it. If it shows deflection then it shows the presence of magnetic field.

Hope it will help you..

Answer 2

The direction of the magnetic field lines of force around a conductor is given by the Maxwell’s right hand grip rule or the right handed corkscrew rule.​ ​Imagine that you are holding a current-carrying straight conductor in your right hand such that the thumb points towards the direction of current. Then your fingers will wrap around the conductor in the direction of the field lines of the magnetic field​ . This is known as right hand thumb rule.