Author Question: How many electrons pass through a 20-W resistor in 10 min if there is a potential drop of 30 volts ... (Read 65 times)

sdfghj · **on:** Jul 28, 2018

How many electrons pass through a 20-W resistor in 10 min if there is a potential drop of 30 volts across it?
a. 5.6 1021
b. 7.5 1021
c. 9.4 1021
d. 1.1 1021
e. 3.8 1021

Question 2

If 5.0 1021 electrons pass through a 20-W resistor in 10 min, what is the potential difference across the resistor?
a. 21 V
b. 32 V
c. 27 V
d. 37 V
e. 54 V