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Sahay Sir > Question Answers > MTG NEET Physics > Part 2 > Chapter 4 - Magnetic Effect of Current and Moving Charges > A long straight wire carrying a current of 30 A is placed in an external uniform magnetic field. of induction 4×10^−4 T. The magnetic field is acting parallel to the direction of current. The magnitude of the resultant magnetic induction in tesia at a point 2.0 cm away from the wire is (μ0=4π×10^−7H/m)

A long straight wire carrying a current of 30 A is placed in an external uniform magnetic field. of induction 4×10^−4 T. The magnetic field is acting parallel to the direction of current. The magnitude of the resultant magnetic induction in tesia at a point 2.0 cm away from the wire is (μ0=4π×10^−7H/m)

A proton is projected with a uniform velocity ′v′ along the axis of a current carrying solenoid then