Electricity

Question 1

What side of the battery do electrons leave?

Answer 1

They leave the negatively charged end

Question 2

Voltage definition

Answer 2

Energy supplied to each coloumb of charge

Question 3

Voltage and Current are
A- not proportional
B- indirectly proportional
C- inversely proportional 
D- directly proportional

Answer 3

D - directly proportional

Question 4

What is a non ohmic resistor

Answer 4

A resistor that changes based on the current

Question 5

If two potential dividers are connected as a Wheatstone bridge how do you find the reading on the voltmeter

Answer 5

1- work out voltage at R2
2- work out voltage at R4
3- reading = difference between R2 and R4

Question 6

What does EMF 1.5V mean?

Answer 6

1.5J of energy is supplied to each coloumb of charge passing through the cell

Question 7

A second resistor is added in parallel to a first resistor what happens to the reading on the voltmeter?

Answer 7

2 resistors means R(Total) decreases
Current increases
Lost volts up
Voltmeter reading down

Question 8

This stack isn’t finished

Answer 8

This stack isn’t finished

Question 9

What is I and what’s it measured in

Answer 9

Current measures in A (Amperes)