Which outcome causes the Gunn diode to generate microwaves?

💡 Explanation

The Gunn diode needs voltage above threshold. The Negative differential resistance effect causes increased voltage leading to decreased current because increased electric field reduces central valley electron mobility, therefore microwave emission rather than other effects results.

• Which outcome occurs to a catalyst surface when electron density mismatches substrate orbitals?
• Which limit becomes higher when applying dielectric material around antennae?
• Which consequence results when the activation energy requirement diminishes in hydrogenation involving a palladium catalyst?
• Which risk increases when a scanning tunneling microscope uses an excessively high bias voltage?
• Which mechanism causes increased conductivity when cooling certain perovskite materials?
• Which mechanism causes increased drag on a subsonic aircraft exceeding its critical Mach number?