NEETPhysicsCurrent ElectricityMCQ+4 / −1
A wheatstone bridge is used to determine the value of unknown resistance X by adjusting the variable resistance Y as shown in the figure. For the most precise measurement of X, the resistance P and Q
- AShould be approximately equal to 2X
- BShould be approximately equal and are small
- CShould be very large and unequal
- DDo not play any significant role
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