Two particles A and B having charges 20   μ C and - 5   μ C respectively are held fixed…

Two particles $A$ and $B$ having charges $20 \mu \mathrm{C}$ and $-5 \mu \mathrm{C}$ respectively are held fixed with a separation of $5 \mathrm{cm}$ At what position a third charged particle should be placed so that it does not experience a net electric force ?

1. At $5 \mathrm{cm}$ from $-5 \mu \mathrm{C}$ on the right side
2. At $5 \mathrm{cm}$ from $20 \mu \mathrm{C}$ on the left side of system
3. At $1.25 \mathrm{cm}$ from $-5 \mu \mathrm{C}$ between two charges
4. At midpoint between two charges

Solution

Asked in: JEE Main 2021 (31 Aug Shift 1)

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