JEE Main 202122 Jul, Evening shiftPhysicsMediumCurrent Electricity150× since 2002
In an electric circuit, a cell of certain emf provides a potential difference of 1.25 V across a load resistance of 5. However, it provides a potential difference of 1 V across a load resistance of 2. The emf of the cell is given by . Then the value of x is ______________.