When a $p-n$ junction diode is in forward bias,which type of charge carriers flows in the connecting wire?

Which one of the following represents a forward-biased diode?

The junction diode in the following circuit requires a minimum current of $1 \, mA$ to be above the knee point $(0.7 \, V)$ of its $I-V$ characteristic curve. The voltage across the diode is independent of current above the knee point. If $V_B = 5 \, V$,then the maximum value of $R$ so that the voltage is above the knee point will be:

In the given circuit,the current flowing through the ideal $P-N$ junction diode is .......$mA$.

In a $p-n$ junction diode,change in temperature due to heating

Which of the following circuits is in forward bias?