ECE109X_POWER PAGE 12 ONWARDS

A diode is in series with a 220 ohms resistor connected in parallel with a 100 ohms resistor. If the voltage across the resistors is 4V, what is the current through the diode?

A junction diode is said to be forward biased if

A network with a diode and a capacitor that is used to shift the dc-level of the input signal

No-load condition means that

A semiconductor that is free from impurities c. Compensated Semiconductor

A silicon diode is in parallel with a germanium diode and is connected to a load resistor having a value of 20 kilo ohms and a forward supply voltage of 10V. What is the approximate voltage across the silicon diode?

A varactor exhibits

An example of elemental semiconductor

An LED

At absolute zero temperature, semiconductor acts as

At forward bias condition, what will happen to the diode resistance when the applied potential is increased?

Conduction of electrons is a doped semiconductor happens at

Current flow in a semiconductor that is due to the applied electric field

Depletion region is an area in a semiconductor device where there are no charge carrier exist. This will be always near the junction of n-type and p-type materials. What causes this junction to be depleted by charge carriers?

Diode circuit that is used to cut a portion of input signal

Elements that has four valence electrons are classified as

Find the line regulation of a regulator when full-load voltage is 110 V and no-load voltage is 120.

For high-speed integrated circuit, which semiconductor material given below is best to be used?

Half-wave rectifier is a good example of

If Ic is 50mA and Ib is 1mA, then beta is

If the substance used in doping has less than four valence electrons, it is known as

Impurities with five valence electrons

In a semiconductor material, what will happen to the number of free electrons when the temperature rises?

In every increase of 10 degrees Centigrade in the operating temperature of a diode will cause its reverse saturation current to a

In materials, what do you call the area that separates the valence band and the conduction band?

In the breakdown region, a zener diode behaves like a _____ source.

Normally, diodes will not conduct when reverse-biased, but of the reverse voltage is increased further, a point will be reached where the diode gives up and allowing the current to surge. This voltage is one of the limiting parameter of diodes is known as

Semiconductor whose electron and hole concentrations are equal

Silicon is widely used over germanium due to its several advantages, what do you think is its most significant advantage?

The area in the semiconductor diode where there are no charge carriers.

The cathode of a zener diode in a voltage regulator is normally

The chemical bond that is present in a crystal lattice of silicon atoms.

The disadvantage of a half-wave rectifier is that the

The electrical resistance of a semiconductor material will _____ as the temperature increases.

The electron flow in a semiconductor material is

The forward current in a conducting diode will _____ as the operating temperature increases

The maximum power the diode can handle

The most extensively used semiconductor

The movement of charge carriers in a semiconductor even without the application of electric potential

The name of pure semiconductor material that has an equal number of electrons and holes

The primary use of Zener diodes in electronic circuits

The process of adding impurities in a semiconductor material

The ripple factor of a power supply is a measure of

The term bias means

What causes the depletion layer?

What is formed when n-type and p-type semiconductors are brought together?

What is the overall electrical charge of the N-material in a semiconductor?

What will happen to the barrier potential of the diode when it operates at higher temperatures?

What will happen to the power handling capability of the diode if it is to be operated at a higher temperature?