# Long path

**Electricity and Magnetism**Level 4

Find out value of E such that the particle enters the magnetic field parallel to x-axis and just passes through point P along the electric field E at that point.

# DETAILS AND ASSUMPTIONS

Neglect the effect of gravity and consider x-axis parallel to L

\[M=√{3} kg\]

\[V=2 \frac{m}{sec}\]

\[q= 1C\]

\[L=2 m\]

\[\theta=30\]