Resistance practical's

Mr Christodoulou

if two resistors are connected in series, state what this means in terms of loops

they are connected in the same loop

when investigating how the length of wire affects the resistance of the wire, name three variables that need to be controlled

temperature of the wire, thickness of the wire and material the wire is made of

when measuring the resistance of a piece of wire, explain why the potential difference should be kept small

so there is a small current and the wire does not heat up as much

as the length of a wire is increased, describe the effect on the resistance of the wire

the resistance should increase

describe the total resistance across different components when they are connected in series

the total resistance is the sum of individual resistances

if two resistors are connected in parallel, state what this means in terms of loops

they are connected in different loops

in symbols, state the equation for the total resistance of two resistors connected in series

Rt = R1 + R2

when investigating how the length of a wire affects the resistance of the wire, name the dependent variable

resistance of the wire

In words, state the equation for the total resistance of two resistors connected in series

total resistance = resistance of resistor 1 + resistance of resistor 2

when investigating how the length of a wire affects the resistance of the wire, name the independent variable

length of the wire