Trivia Questions With Answers!

**Resistor Quiz Questions **

What is a resistor?

A: It's a passive two-terminal electrical component that provides electrical
resistance in a circuit.

Resistors act to reduce what?

A: Current flow.

Resistors also act to lower what within circuits?

A: Voltage levels.

In electronic circuits resistors have many potential uses
such as what?

A: Limit current flow, to adjust signal levels, bias active elements and more.

High-power resistors that can dissipate many "what" are
necessary in many applications?

A: Watts.

Resistors can have fixed resistances that only change
slightly with what?

A: Temperature, time or operating voltage.

Variable resistors can be used to adjust what?

A: Circuit elements such as a volume control or a lamp dimmer.

Resistors can also be used as sensing devices for what?

A: Heat, light, humidity, force, or chemical activity.

Practical resistors as discrete components can be composed
of various what?

A: Compounds and forms.

Resistors are also implemented within what type of
circuits?

A: Integrated circuits.

The electrical function of a resistor is specified by its
what?

A: Resistance.

Commercial resistors are manufactured over a range of more
than how many orders of magnitude?

A: Nine.

The hydraulic analogy compares electric current flowing
through circuits to what?

A: Water flowing through pipes.

When a pipe is filled with hair, it takes a larger pressure
to achieve the same flow as a pipe with what?

A: No hair.

Pushing electric current through a large resistance is like
pushing water through a pipe clogged with hair: It requires a larger push, or
higher what?

A: Voltage.

The behavior of an ideal resistor is dictated by the
relationship specified by what law?

A: Ohm's law:

Practical resistors also have some what?

A: Inductance and
capacitance, which can affect voltage and current in
alternating current circuits.

What is the symbol for the SI unit of electrical
resistance?

A: The ohm (symbol: Ω).

Who was the ohm named after?

A: George Simon Ohm.

An ohm is equivalent to what?

A: A volt per ampere.

The total resistance of series connected resistors is
what?

A: The sum of their individual resistance values.

The total resistance of resistors connected in parallel is
what?

A: The reciprocal of the sum of the reciprocals of the individual resistors.

Resistors are rated according to their maximum what?

A: Power dissipation.

How are most discrete resistors in solid-state electronic
systems typically rated?

A: As 1/10, 1/8, or 1/4 watt.

Resistors required to dissipate substantial amounts of
power are generally referred to as what?

A: Power resistors.

What might happen if the average power dissipated by a
resistor is more than its power rating?

A: Damage to the resistor may occur.

Too much power dissipation can raise the temperature of the
resistor high enough to what?

A: Burn the circuit board or adjacent components, or even cause a
fire.

Practical resistors have a series inductance and a small
what?

A: Parallel capacitance.

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