For V10 Volts and I 11 Amp the power dissipated in R2 is 1

For V=10 Volts and I = 1.1 Amp the power dissipated in R_2 is 1 Watt. What is the value of R_1? 10 Ohms 90 Ohms 1 Ohm 100 Ohms

Solution

The current =Powver/Volt

The current through R2 resitance is=1W/10V=0.1A

The currnt thrpugh R1 restance is=I-IR1=1.1-0.1=1amp

R1=Voltage/Current throughr R1=10V/1amp=10 ohms