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