Question

please answer the following

1)A circuit has a total unknown resistance R_eq. This unknown resistance is connected to a 15.1 V battery. Once connected this unknown resistance sees 77.7 C of charge pass through it every 37.0 seconds. What is the value for the unknown resistance R_eq?

	A.	80.5 Ω
	B.	110.0 Ω
	C.	7.2 Ω
	D.	31.7 Ω
	E.	0.2 Ω

2)You have a large supply of identical bulbs and a battery. You start with one lightbulb connected to the battery and note its brightness.

You then start to add 1 lightbulb at a time in series to the previous one. As you add lightbulbs, what happens to the brightness of the bulbs and the lifetime of the battery?

	A.	When considering lifetime of the bulb, its capacitance must be known in order to determine what becomes of it.
	B.	Brightness increases, lifetime decreases as more bulbs added
	C.	Brightness decreases, lifetime increases as more bulbs added
	D.	Brightness & Lifetime increase as more bulbs are added
	E.	Brightness & Lifetime decrease as more bulbs are added

Answer 1