TSA: Electrical Applications
8.2M? 5%
A four band resistor has the following color codes: grey, red, green, gold. What is the resistance for this resistor?
2.4k? 5%
A four band resistor has the following color codes: red, yellow, red, gold. What is the resistance for this resistor?
9M? .05%
A four band resistor has the following color codes: white, black, green, grey. What is the resistance for this resistor?
45M? 10%
A four band resistor has the following color codes: yellow, green, blue violet. What is the resistance for this resistor?
Direct Current
A generator produces which type of current?
.5 amps
A light bulb is rated at 60 watts. If it is connected to a 120-volt socket, what are the amps flowing through it?
15kV
A power supply is set to an unknown voltage. The current through the circuit is 5A and the total resistance of the circuit is 3K?. What is the value of the current passing through the circuit?
201 watts
A solar panel has an output of 6.3 amps and 32 volts. What is the wattage of this panel?
Store
Capacitors are devices that_energy.
Alternating Current
Household electrical outlets have what kind of current?
120 volts
If a light bulb rated at 120 watts has 1 amp running through it, how many volts are needed to keep it on?
Transistor
Invented in 1947, this main component in all modern electrical devices has diminished in size over time.
FLASE
TRUE OR FLASE: A galvonometer is used for measuring potential difference
FALSE
TRUE OR FLASE: An electric bulb emits light because the air inside gets hot.
FALSE
TRUE OR FLASE: Kilowatt-hour is the unit of electrical power.
TRUE
TRUE OR FLASE: Micro-hydro systems are used to convert the mechnical energy from small streams into electrical energy.
FALSE
TRUE OR FLASE: On a resistor with four color bands, the fourth band represents the anode end of the resistor.
TRUE
TRUE OR FLASE: On a resistor with four color bands, the third band represents the multiplier.
TRUE
TRUE OR FLASE: Opposite charges attract.
TRUE
TRUE OR FLASE: Parallel circuits are used when wiring a house.
TRUE
TRUE OR FLASE: The electrical potential is the difference in electrical charge between two points in a circuit. It is also called the voltage.
TRUE
TRUE OR FLASE: V=I x R is the correct expression of Ohm's law.
Alternating Current
The United States power grid has which type of current?
Electron
The primary carrier of electricity in all solids
Farad
The standard unit of measure for capacitance
Henry
The standard unit of measure for inductance
Ampere
The standard unit of measure of electric current
Tesla
The standard unit of measure of magnetic fields
Switch
This device is used to open and close a circuit.
Series
What is the term for an electrical circuit that has only one path of current flow?
1.2mA
A 20V power supply is connected to a circuit that has a total resistance of 20K?. What is the value of the current passing through the circuit?
7.2M? 1%
A four band resistor has the following color codes: Violet, red, green, brown. What is the resistance for this resistor?
100k? 2%
A four band resistor has the following color codes: brown, black, yellow, red. What is the resistance for this resistor?
Proton
Positively charged part of the atom
Resistance
An electrical quantity that measureshow the device or material reduces the electric current flow through it
Diode
An electronic component that only allows current flow in one direction
120?
An unknown resistor in a simple circuit is connected to a 3V power supply. The current through the resistor is 25mA. What is the resistance of the resistor?
Repel
Like charges:
Attract
Opposit charges:
