Respuesta :
Answer:
The Req is 16 ohm, total current is same for both i.e. 0.75A and voltage are 9V and 3V for resistor R1 and R2 respectively.
Explanation:
- For series combination, resistance are added, Req = R1 + R2 = 16 ohm.
V(total)= I(total) * Req
or, I(total)=V/Req=12/16=0.75 amp.
Now,
Voltage across R1= I(total) * R1= 0.75* 12=9V
Voltage across R2= I(total) * R2= 0.75* 4=3V
- However, in parallel combination, voltage is constant across both the resistance, current is different in both the resistance and total resistance is calculated by the following expression:
- R(parallel) = (R1 * R2)/ R1+R2
