ELE100 Resistor Quiz

A 30-W resistor is connected to a 4-V supply. How many watts will this resistor have to dissipate?

0.533

A resistor has color bands of brown, black, red, and silver. What is the resistance and tolerance of the resistor?

1000 W, 10%

A resistor has color bands of red, violet, brown, and gold. What is the resistance and tolerance of the resistor?

270 W, 5%

A variable resistor with two terminals is called a

Rheostat

Resistors which have only one ohmic value are called _____ resistors.

fixed

Wire-wound resistors are often used because they are able to operate at _____ power levels than other resistors.

higher

A variable resistor with three terminals is called a

potentiometer

In a circuit that has very little resistance, almost any applied voltage will result in huge amounts of current. This is called a _____ circuit.

short

A resistor whose values can be varied over a range of values is called a _____ resistor.

variable

When two or more resistors are connected in series across a voltage supply, each of the resistors will have a voltage across it. The resistor network is known as a

voltage divider

A resistor made by winding a piece of resistive wire around a ceramic core is the _____ resistor.

wire wound

When resistors are manufactured, the processes are not perfectly exact. Each resistor may be slightly different from the next one. The plus and minus limits of a resistor's marked value is called the

tolerance