Question

determine the current I in the circuit shown in the future.all resistance are in ohms?

Answer 1

Explanation:

Ohms Law and Power

To find the Voltage, ( V ) [ V = I x R ] V (volts) = I (amps) x R (Ω)

To find the Current, ( I ) [ I = V ÷ R ] I (amps) = V (volts) ÷ R (Ω)

To find the Resistance, ( R ) [ R = V ÷ I ] R (Ω) = V (volts) ÷ I (amps)

To find the Power (P) [ P = V x I ] P (watts) = V (volts) x I (amps)

Answer 2

Answer:

Assuming potential at Q is V

applying KVL loop 1

9−2i−1(i−i

1

)−3i=0...(i)

applying KVL loop 2

6−3i

1

+1(i−i

1

)=0...(ii)

solving (i) and (ii)

i=1.82A and i

1

=1.95A

Current through 1Ω resistor =i−i

1

=−.13A

Therefore, current through 1Ω resistor is 0.13A from Q to P