Exercise 26.16 Consider the circuit shown in the figure ( Figure 1 ) . The curre

Question

Exercise 26.16

Consider the circuit shown in the figure (Figure 1) . The current through the 6.00-? resistor is 4.00 A, in the direction shown.

Part A

What is the currents through the 25.0-? resistor?

Part B

What is the current through the 20.0-? resistor?

Exercise 26.16

Consider the circuit shown in the figure (Figure 1) . The current through the 6.00-? resistor is 4.00 A, in the direction shown.

Part A

What is the currents through the 25.0-? resistor?

I = ________ A  

Part B

What is the current through the 20.0-? resistor?

I = ________   A  

Exercise 26.16 Consider the circuit shown in the figure (Figure 1) . The current through the 6.00-? resistor is 4.00 A, in the direction shown. Part A What is the currents through the 25.0-? resistor? I = ________ A Part B What is the current through the 20.0-? resistor?

Explanation / Answer

Here ,

let I be the current through 25 Ohm

Using current divider ,

I(6) = I*8/(6 + 8)

4 = I*8/(14)

I = 7 A

therefore , current through 25 Ohm is 7 A

B)

Now , Using KVL

E - 6*4 - 25*7 = 0

E = 199 V

Now , using Ohm's law

I(20) = 199/20

I(20) = 9.95 A

the current through 20 ohm is 9.95 A

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