1
Resistors which have only one ohmic value are called _____ resistors.
Fixed
A resistor made by applying a film of metal to a ceramic rod in a vacuum is the _____ resistor.
Metal Film
A resistor made from a compound of carbon and resin bonding material is the _____ resistor.
Composition Carbon
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
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
(T or F) Many resistors use bands of color to indicate the ohmic value and tolerance of the resistor. These bands are interpreted by referring to a “color code.”
True
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
(T or F) Connecting a 150 W, 1/2-W resistor to a 9-V supply will damage it.
True
Wire-wound resistors are often used because they are able to operate at _____ power levels than other resistors.
Higher
A resistor made by applying a film of carbon to a ceramic rod is the _____ resistor.
Carbon Film
A resistor made by winding a piece of resistive wire around a ceramic core is the _____ resistor.
Wire Wound
A resistor made by combining metal with glass and then applying it to a ceramic base as a thick film is the _____ resistor.
Metal Glaze
A resistor whose values can be varied over a range of values is called a _____ resistor.
Variable
A resistor has color bands of red, violet, brown, and gold. What is the resistance and tolerance of the resistor?
270 Ω, 5%
A resistor has color bands of brown, black, red, and silver. What is the resistance and tolerance of the resistor?
1000 Ω, 10%
A 30-Ω resistor is connected to a 4-V supply. How many watts will this resistor have to dissipate?
0.533
A variable resistor with two terminals is called a
Rheostat
A variable resistor is also called a
Potentiometer
A variable resistor with three terminals is called a __.
Potentiometer
A variable resistor that has a shaft that rotates more than one rotation is called a _____ variable resistor.
Multiturn