Electricity

Question 1

What is the voltage rule in a series circuit

Answer 1

The voltage is shared through all components in series

Question 2

What is the voltage rule for parallel circuits

Answer 2

The voltages are the same through all parallel paths

Question 3

What are the resistance rules in a series circuit

Answer 3

The resistance is combined, r1+r2+…=rTotal

Question 4

What is the resistance rule in parallel circuits

Answer 4

The resistance is lower than the smallest resistor in parallel, 1/r=1/r1+1/r2+…

Question 5

Describe a I-V graph for an ohmic component

Answer 5

As voltage increases, the resistance increases proportionally

Question 6

Describe a I-V graph for a filament bulb

Answer 6

Voltage and current increase linearly until the current flattens out, but voltage still increases

Question 7

Describe the I-V graph for a semiconductor diode

Answer 7

The current increase exponentially as voltage increases

Question 8

How does temperature affect resistance in a semiconductor

Answer 8

As the temperature increases, the resistance decrease

Question 9

How doses temperature affect resistance in a metal

Answer 9

As the temperature increases, the resistance increases

Question 10

Describe the temperature resistance graph for a metal

Answer 10

The temperature resistance graph of a metal has a positive coefficient

Question 11

Describe the resistance temperature graph for a semiconductor

Answer 11

The temperature resistance graph for a semiconductor has a negative coefficient