SEM 1

The unit of electrical charge is the

• coulomb

• joule

• volt

• watt

The minimum resistance value for a blue, gray, red, silver resistor is

• 612 ohm

• 6,120 ohm

• 6,800 ohm

• 6,460 ohm

Which of the following is not a type of energy source?

• generator

• rheostat

• 
  solar cell

• battery

The conductance of an 8 ohm resistance is

• 12.5 mS

• 8 mS

• 12S

• 125 mS

A thermistor is a type of

• 
  switch

• 
  resistor

• battery

• 
  power supply

two-terminal variable resistor is known as a

• potentiometer

• 
  thermistor

• 
  rheostat

• 
  wiper

When the current is 2.5 A, how many coulombs pass a point in 0.2 s?

• 12.5 C

• 1.25 C

• 0.5 C

• 
  5 C

The colored bands for a 4,700 ohm resistor with a ten percent tolerance are

• yellow, violet, red, gold

• yellow, violet, orange, gold

• yellow, violet, red, silver

• 
  orange, violet, red, silver

A neutral atom with an atomic number of five has how many electrons?

• 1

• 5

• none

• depends on the type of atom

A string of five series resistors is connected across a 6 V battery. Zero voltage is measured across all resistors except R₃. The voltage across R₃ is

• 0 V

• 1.2 V

• 6 V

• 0.6 V