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In the following diagram, the current passing through 20 Ohm is 1.5 A. 20-2 15 A www- 302 wwww 402 502 ww- vs Find emf of the power supply. a. 70.6 V b. 55.0 V C. 15.6 V d. 23.7 V

In the following diagram, the current passing through 20 Ohm is 1.5 A. 20-2 15 A www- 302 wwww 402 502 ww- vs Find emf of the power supply. a. 70.6 V b. 55.0 V C. 15.6 V d. 23.7 V

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In the following diagram, the current passing throueh 20 Ohm is 1.5 A. 20-2 15A www 302 a 402 50n Find emf of the power supply. a. 70.6 V b. 55.0 V c. 15.6 V d. 23.7 V
Transcribed Image Text:In the following diagram, the current passing throueh 20 Ohm is 1.5 A. 20-2 15A www 302 a 402 50n Find emf of the power supply. a. 70.6 V b. 55.0 V c. 15.6 V d. 23.7 V
Expert Solution
Step 1 Concepts and formula used

According to Kirchhoff's voltage law (KVL): The total of all voltage drops within a loop is zero. 

According to Kirchhoff's current law (KCL): The sum of all currents entering a node is equal to the sum of all currents exiting that node.

The equivalent resistance of two parallel resistances is given by,

1Rp = 1R1 + 1R2

The equivalent resistance of two series resistances is given by,

 Rs = R1 + R2

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