P
Pinkie
Guest
Q1
What is the voltage across a 1.2M? resistor if 4.5µC of charge passes through it in 30ms?
Ans = 180V, need working out pls
Q2
A particular design requires that the current in a ciruit be 3.5mA, A 12V source provides the current.
a. Find the closest standard value resistor with a 5% tolerance whose nominal value would limit the current to the required value ±10%
b. Find the maximum percent deviation from 3.4mA that could result from using the standard value found in part (a)
Again i have answers but i want to know how to get them.
Ans
a. 3.6kOhm
b. 8.12%
Q3
Find the peak current through a 0.04H inductor when the voltage across it is
v(t) = 169sin (377t) µV
Ans = 0.637A, working out pls
Q4
FInd the capacitive reactance of
a.150µF capacitor when the voltage across it is 16sin(5000t)V
b. 20pF capacitor when the current through it is 95sin(2? x 4 x 10^6t) A
Ans
a. 1.33?
b. 1.989?
working out again pls, thanks! xx
What is the voltage across a 1.2M? resistor if 4.5µC of charge passes through it in 30ms?
Ans = 180V, need working out pls
Q2
A particular design requires that the current in a ciruit be 3.5mA, A 12V source provides the current.
a. Find the closest standard value resistor with a 5% tolerance whose nominal value would limit the current to the required value ±10%
b. Find the maximum percent deviation from 3.4mA that could result from using the standard value found in part (a)
Again i have answers but i want to know how to get them.
Ans
a. 3.6kOhm
b. 8.12%
Q3
Find the peak current through a 0.04H inductor when the voltage across it is
v(t) = 169sin (377t) µV
Ans = 0.637A, working out pls
Q4
FInd the capacitive reactance of
a.150µF capacitor when the voltage across it is 16sin(5000t)V
b. 20pF capacitor when the current through it is 95sin(2? x 4 x 10^6t) A
Ans
a. 1.33?
b. 1.989?
working out again pls, thanks! xx