1. Given 3 resistors, R1=1O, R2=2O, R3=3O... a. What is the equivalent resistanc
ID: 1698880 • Letter: 1
Question
1. Given 3 resistors, R1=1O, R2=2O, R3=3O...a. What is the equivalent resistance, if they are connected in series?
Ceq=1+2+3=6O Is this correct??
b.If the 3 series resistors are connected to a 12V battery , what is the current through each resistor?
c. What is the voltage drop across each resistor?
2. Same as part 1 except resistors are in parallel.
a.What is equivalent resistance, if they are connected in parallel?
b.If the 3 parallel resitors are connected to a 12V battery, what is the current through each resistor?
c.What is the voltage drop across each resistor?
Explanation / Answer
if the resistors are in series combination
equivalent resistance is
R _eq = R1 + R2 + R3
= 1 + 2+ 3 = 6
current through each battery is same
V = I R _eq
I = V / R _ eq = 12 / 6 = 2 A
voltage drop across each resistor is
V1 = I R1 = 2*1 = 2 V
V2 = I R2 = 2 * 2 = 4 V
V3 = I R3 = 2 * 3 = 6 V
resistors are in parallel com bination
1 / R _ eq = 1 / R1 + 1 / R2 + 1 / R3
= 1 / 1 + 1 / 2 + 1/3
Req = 0.545
voltage across each resistor is same
current each resistor is
I1 = V / R1 = 12 / 1 = 12 A
I2 = V / R2 = 12 / 2 = 6 A
I3 = V / R2 = 12 / 3 = 4 A
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.