Unit 10 Test Circuits

Solve:
Voltage = ?
Current =  5 Amps
R = 9 Ohms

• V = 40 Volts
• V = 1.8 Volts

True or False?
Total resistance is equal to the sum of the individual resistances (light bulbs) on the circuit path.

• True
• False

What type of circuit only has one path for electrons to flow? 

• Series
• Parallel

What is like pressure and is a type of a potential energy? 

• Current
• Resistance
• Voltage
• Circuits

____________ have chemicals inside and produce electricity by converting the chemical energy into electrical energy. 

• Bulbs
• Batteries

What controls the amount of current in a circuit?

• Resistance
• Pressure

In order to operate a hairdryer, the current required is 2.5 A.  What is its resistance if the voltage supplied is 120 V? 
Given: 
V = 120 V
I = 2.5 A
R = ?

• 48 
• 300

• There are two leads and one bulb.
• There are three leads and one bulb.

What measures the flow of electrons from one place to the next?

• Parallel Circuit
• Current

• 1 bulb, four leads, 1 battery and 2 switches
• 1 bulb, three leads, 1 battery, and one open switch