1. Calculations
•! V = IR
–!V = Voltage in
volts
–!I = Current in
amps
–!R = Resistance in V
ohms
V
V
V V
V

2. V

3. V

4. V
http://www.physics.uoguelph.ca/phyjlh/Fendt/phe/ohmslaw.htm
Current (I) is proportional to Voltage ( V) if you reduce the voltage
by half the current will be reduced by half
Current (I) is inversely proportional to Resistance (R)
if you reduce resistance by half the current will double

5. Something like this:

6. http://en.wikipedia.org/wiki/Ohm%27s_law