5. Find the current in the R1 resistor in the drawing (V1 = 16.0 V, V2 = 18.0 V, V3 = 15.0 V, R1 = 2.00 2, R2 = 2.00 S2, and R3 = 2.30 2). ww- R, R, R3 V, def19 oof19 o 19 0of19 oof19
Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
Kirchhoff’s second rule is an application of conservation of energy. It is also known as the loop rule.
Apply Kirchoff's second rule to loop 1
V1- I1R1-I2R3+V3=0
16-2I1-2.3I2+15=0
31-2I1-2.3I2=0 .....(1)
Apply Kirchoff's rule 2 to loop 2
V3+V2+( I1-I2 )R2- I2 R3=0
15+18+2I1-2I2 -2.3I2 =0
33+2I1-4.3I2=0 ......(2)
Adding eqns 1 and 2 one will get
64-6.6I2=0
I2=9.69 A
Put this value of I2 in eq.2
I1=3.8 A
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