Consider the circuit shown in the figure ( Figure 1 ) . Suppose the four resisto

Question

Consider the circuit shown in the figure(Figure 1) . Suppose the four resistors in this circuit have the values R1 = 10? , R2 = 8.0? , R3 = 7.7? , and R4 = 14? , and that the emf of the battery is E = 15V .

Find the current through each resistor using the rules for series and parallel resistors.

Find the current through each resistor using Kirchhoff's rules.

Consider the circuit shown in the figure(Figure 1) . Suppose the four resistors in this circuit have the values R1 = 10? , R2 = 8.0? , R3 = 7.7? , and R4 = 14? , and that the emf of the battery is E = 15V . Find the current through each resistor using the rules for series and parallel resistors. Find the current through each resistor using Kirchhoff's rules.

Explanation / Answer

-i2*R2-i2*R4+i3*R3=0...(1)

V-i3*R3-i1*R1=0....(2)

i2=i1-i3....(3)....by solving these 3 eqns...we get

current through R1=0.955 A..
through R2 and R4 is0.248 A
through R3 is 0.707 A

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