MCQ
The equivalent capacitance between $A$ and $B$ is


- A$\frac{C}{4}$
- B$\frac{{3C}}{4}$
- C$\frac{C}{3}$
- ✓$\frac{{4C}}{3}$


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$[1]$ The magnetic field strength may have been increased while the particle was travelling in air
$[2]$ The particle lost energy by ionising the air
$[3]$ The particle lost charge by ionising the air