Question

A Wheatstone's bridge is constructed out of four resistance $10\Omega ,50\Omega ,100\Omega$ and $500\Omega$. If a 25 volt battery is connected across $500\Omega$ resistance then current in $500\Omega$ resistance will be

• A. $5mA$
• B. $0.5A$
• C. $5A$
• D. $0.05A$

Answer 1

The correct option is D $0.05A$

Since 25 volt battery is connected across 500 $\Omega$

So we don't have to worry about rest of the circuit we know potential across 500$\Omega$

which is $25V$

Therefore, Current through the resistor is $25/500=0.05A$

option (D)