Show:
Terms
Atom structure
Voltage
Current
Resistance
100

Circuit

A complete path for current flow

100

Name the three particles of an atom 

Proton/Neutron/Electron


100

The formula for finding voltage when both current and resistance are known is_____.

E=IxR

100

What is the formula for finding current?

I=E/R

100

What is the formula for resistance?

R=E/I

200

Voltage

Force that makes current flow in a circuit (electrical pressure/EMF) represented by the letter E 

200

An Atom that gains or loses electrons is known as a(n)_______.

Ion

200

Circuit has a current of 2 amps flowing through a resistor of 5 ohms. What is the voltage?

10V

200

What is the current in a 240V circuit with a resistance of 10 Ohms?

24Amps

200

What is the resistance when the voltage is 120v and the current is 6a?

20 Ohms

300

Current 

Flow of electrons in a circuit. Intensity of flow (I) is measured in amperes (A) 

300

Conductors have ______ or fewer valence electrons.

Three or fewer 

300

Current of 4 amps flow through a 10 ohm resistor. What is the voltage?

40V

300

Name at least two factors that affect current

Voltage

Wire size

Conductor material 

Temp

Conductor length 

300

A Ohmmeter is used to measure resistance and check for ____.

Continuity 

400

Resistance 

Opposes the flow of current. Represented by the letter R and measured in Ohms. 

400

An atom that has four valence electrons is known as a(n)______.

Semiconductor 

400

What is the voltage in a 10 ohm circuit with a power rating of 1.200W?

109.54V

P=V2/R

V=Square root PxR

400

WHat is the current flowing through a 12 Ohm resistor connected to a 24-volt power supply?

2A

400

100 W of power connected to a 200-V supply. What is the resistance? 

400 Ohms

P=V2/R  then R=V2/P

500

Power 

The rate of doing work-which energy is used or dissipated. Measured in Watts (W)  

500

What part of the atom is responsible for the flow of electrical current in a conductor?

Valence electrons 

500

Resistor has a power rating of 200W and a resistance of 50 Ohms. What is the voltage?

100V

P=V2/R

V=Square root PxR


500

A heater uses 1500 W of power and connected to a 120V supply. What is the current?

12.5A

P=VxI  then I=P/V

500

A resistor with a color code of yellow, orange, red, and silver has a tolerance of_____.

+- 10%