If a $p-n$ junction diode is forward biased,then:

Find the magnitude of current in the given circuit. (in $A$)

$A$ $5 \, V$ battery is connected across the points $X$ and $Y$. Assume $D_{1}$ and $D_{2}$ to be normal silicon diodes. Find the current (in $A$) supplied by the battery if the positive terminal of the battery is connected to point $X$.

The characteristic graph of a diode at different temperatures is shown. What is the relationship between the temperatures?

An operational amplifier is a

The circuit shown contains a $12 \, V$ battery,a $4 \, \Omega$ resistor,and two branches in parallel,each containing an ideal diode and a resistor. Branch $1$ has diode $D_1$ and a $3 \, \Omega$ resistor,while branch $2$ has diode $D_2$ and a $2 \, \Omega$ resistor. Determine the current flowing through the circuit. (in $, A$)