V= I.R calculations (F)

 $resis\tan ce\ =\ \frac{potential\ diffrence}{current}$  What size resistance would produce a 3A current flow with a 12V battery?

• 1 Ohm

• 3 Ohms

• 4 Ohms

• 12 Ohms

 $potential\ difference\ =\ current\ \times\ resis\tan ce$  

What is the potential difference of a circuit that has a resistance of 5Ω and a current of 2A?

• 25 V

• 10 V

• 10 W

• 10 A

 $potential\ difference\ =\ current\ \times resis\tan ce$  

What potential difference would we need to produce a current flow of 8 Amps through a 1.5 Ohm resistor?

• 12 volts

• 24 volts

• 1.3333

• 48 volts

 $potential\ difference\ =\ current\ \times resis\tan ce$  

How many Volts would it take to push a 1 Amp current through a resistance of 5 Ohm?

• 10 volts

• 5 volt

• 48 volts

• 5 volts

 $current\ =\ \frac{potential\ difference}{resis\tan ce}$  This circuit has a 24 volt battery and the resistor is 8 ohms. What current is running through the circuit?

• 3 Amps

• 192 Amps

• 2 Amps

• 4 Amps

Answer explanation

 $c$ 

 $potential\ difference\ =current\ \times resis\tan ce$  What is the potential difference of a circuit that has a resistance of 5 Ω and a current of 2 A?

• 25 V

• 10 V

• 2.5 V

• 0.4 V

Answer explanation

$potential\ difference\ =current\ \times resis\tan ce$

 $current\ =\frac{potential\ difference}{ressis\tan ce}$  This circuit has a 24 volt battery and the resistor is 4 ohms. How many amps are running through the circuit?

• 6 Amps

• 192 Amps

• 2 Amps

• 4 Amps

Answer explanation

$current\ =\ \frac{potential\ difference}{resis\tan ce}$

 $resis\tan ce\ =\frac{potential\ difference}{current}$  

What size resistor would produce a 3 Amp current flow with a 12 Volt battery?

• 1 Ohm

• 3 Ohms

• 4 Ohms

• 12 Ohms

 $resis\tan ce\ =\ \ \frac{difference\ difference}{current}$  What would the resistance be if a 7.5 Amp current was present and the potential difference was 15 Volts? 

• 15 Ohms

• 4 Ohms

• 0.3333 Ohms

• 2 Ohms

Answer explanation

 $resis\tan ce\ =\frac{potential\ difference}{current}$  

 $resis\tan ce\ =\frac{potential\ difference}{current}$  

What size resistor would produce a 24 Amp current flow with a 4 Volt battery

• 1 Ohm

• 0.17 Ohms

• 4 Ohms

• 12 Ohms