What equations do I use for both questions?
 
											 
											Explanation:
You'll need to use two equations:
Current = charge / time
I = Q / t
Voltage = current × resistance
V = IR
a) I = Q / t
I = 6 C / (60 s)
I = 0.1 A
b) V = IR
2 V = (0.1 A) R
R = 20 Ω