Final answer:
True, when a diode is forward-biased, it does act as a conductor by allowing electrical current to flow through it easily.
Step-by-step explanation:
The statement that when a diode is forward-biased, it acts as a conductor, is True. A diode is a semiconducting device which allows current to flow through it only in one direction. This occurs when the anode (the positive side of the diode) is connected to the positive side of the battery and the cathode (the negative side) is connected to the negative side. This configuration narrows the depletion layer at the p-n junction and reduces the potential energy difference, which allows electrons (and holes) to flow easily across the junction, thereby allowing electrical current to pass.
When the voltage across a diode in forward bias is positive and greater than a certain threshold (typically 0.7 V for silicon diodes), the diode conducts electricity well, and its resistance is close to zero. The current through a forward-biased diode increases exponentially with voltage, hence the diode behaves as a nonohmic device. However, in the reverse bias scenario, where the anode is connected to the negative side and the cathode to the positive side, the depletion layer widens resulting in very little to no current flow until a breakdown voltage is reached.