TSA: Electrical Applications

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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:


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