Question

three resistors 10ohm 20ohm 30ohm are connected in series combination.
i. find equivalent resistance of combination.
ii. when this series combination is connected to 12V supply by neglating the values of internal resistance obtain potential differance across each resistor.




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Answer 1

Answer:

here

Step-by-step explanation:

a) equivalent resistance = 60ohm

current in the circuit =v\r=12\60=1\5=0.2ampere

voltage across 10ohm resistor = I × R= 10×0.2=2volt

voltage across 20ohm resistor =20×0.2=4volt

and remaining voltage will be dropped along 30ohm resistor =6 volt

Answer 2

Step-by-step explanation:

equivalent resistance =10+20+30

=60ohms

now

PD across each resistor

I=V/R

I=1/5 A

for R1

V=IR

V=1/5×10=2v

for R2

V=IR

V=1/5×20=4v

for R3

V=IR

V=1/5×30=6V