Voltage Current And Resistance

Question 1

Identify the type of component that depends on which way around it is connected in a circuit

Answer 1

A diode

Question 2

What does ‘A’ mean

Answer 2

Amps

Question 3

What does ‘V’ mean

Answer 3

Volts

Question 4

What is Ohm’s law?

Answer 4

V=IR

Question 5

How do you show current in Ohm’s law?

Answer 5

I

Question 6

What are you trying to find out if you do the equasion

V÷I

Answer 6

(R) or resistance

Question 7

What are you trying to find in the equation

I x R

Answer 7

Voltage(v)

Question 8

What is the relationship between the length of a wire and it’s resistance

Answer 8

They are directly proportional to each other forming a strait line on the graph

Question 9

What is the gradient of a straight line

Answer 9

Constant

Question 10

What does ‘Ω’ mean

Answer 10

Ohms

Question 11

What is resistance measured in?

Answer 11

Ohms (Ω)

Question 12

What is potential difference?

Answer 12

The amount of energy that is being given to the charges by the cells/battery and transferred to the components by each coulombs change

Question 13

What is potential difference measured in?

Answer 13

Volts

Question 14

What do you use to measure potential difference?

Answer 14

Voltmeter

Question 15

What component has to be connected in parallel

Answer 15

Voltmeter

Question 16

Why is it called potential difference?

Answer 16

It is the difference in electric potential energy

Question 17

What is resistance

Answer 17

How hard it is for current to flow

Question 18

Resistance equals

Answer 18

Voltage over current

V over A