A compass needle oscillates 20 times per minute at a place where the dip is 30^(°) and 30 times per minute where the dip is 60^(°). The ratio of total magnetic field due to the earth at two places respectively is 4/(√(x)). The value of x is

Magnetic Effects of Current and Magnetism: JEE Main 2023 Physics question

JEE Main 2023 · 12 Apr, Morning shift · Q68

JEE Main 202312 Apr, Morning shiftPhysicsMediumMagnetic Effects of Current and Magnetism165× since 2002

A compass needle oscillates 20 times per minute at a place where the dip is

30^{\circ}

and 30 times per minute where the dip is

60^{\circ}

. The ratio of total magnetic field due to the earth at two places respectively is

\frac{4}{\sqrt{x}}

. The value of

x

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2023 Magnetic Effects of Current and Magnetism Question with Answer (12 Apr Morning shift, Q68) | JEE Arc