Z-score = (2.3 - 2.7)/(0.4/√15) = -0.4/0.1033 = -3.87
In one tray, we have 1/5. Since one is purple out of the 5 colors.
So in 20 trays, we have:
(1/5) x 20 = 20/5 = 4
Answer:
R = 56.6 ohms
Step-by-step explanation:
Given that,
The voltage of the battery, V = 1.7 volt
We need to find the resistance in the circuit if it uses a current of 0.03 A.
Let the resistance be R. It can be solved using Ohms law as follows :
V = IR

So, the resistance in the circuit is 56.6 ohms.