ELECTRONICS

If 60 J of energy are available for every 15 C of charge, what is the voltage?

• 4V

• 60V

• 15V

• 0.25V

A voltage will influence current only if the circuit is:

• OPEN

• INSULATED

• HIGH RESISTANCE

• CLOSED

Which resistive component is designed to be temperature sensitive?

• Thermistor

• Rheostat

• Potentiometer

• Photoconductive cell

When parallel resistors are of three different values, which has the greatest power loss?

• The smallest resistance

• The largest resistance

• They have the same power loss.

• Voltage and resistance values are needed.

The voltage across any branch of a parallel circuit:

• varies as the total current varies

• is inversely proportional to total circuit resistance

• is equally applied to all branch conductance

• is dropped in proportion to each branch resistance

As frequency increases

• both series and parallel RL impedance decrease

• series RL impedance decreases and parallel RL  impedance increases

• series RL impedance increases and parallel RL  impedance decreases

• both series and parallel RL impedance increase

Which of the following is not a physical component of an electronic circuit?

•  Capacitor

• Inductor

• Diode

• Temperature

Which of the following is the correct relationship between temperature (T) and mobility (u) of electrons in electronic circuits?

•  u ∝ T-3/2

•  u ∝ T-1/2

•  u ∝ T

• u ∝ T-1

What type of semiconductor is used in LED electronic circuits?

•  Intrinsic semiconductor

•  Compound semiconductor

•  Degenerate semiconductor

• Compensated semiconductor

Mass action law is not valid for which type of semiconductors in electronic devices?

• Compound

•  Elemental

• Degenerative

• Compensated