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Circuit Theory Question Paper

Circuit Theory

Course:Bachelor Of Engineering In Electrical And Electronics Engineering

Institution: Moi University question papers

Exam Year:2009

CIRCUIT THEORY
1. State Kirchoff's laws and apply them to the solution of the following problem.

Two batteries, A and B, are connected in parallel, and an 80 ohm resistor is connected across the battery terminals. The e.m.f and the internal resistance of battery A are 100 V and 5 ohm respectively, and the corresponding values for battery B are 95 v and 3 ohms respectively. Find
a. The value and direction of the current in each battery
b. The terminal voltage

2. A network of resistors has a pair of input terminals AB connected to a d.c supply and a pair of output terminals CD connected to a loaf resistor of 120 ohm. The resistances of the network are AC=BD=180 ohm and AD=BC=80 ohm. Find the ratio of the current in the load resistor to that taken from the supply

3. A secondary cell having an e.m.f of 2 V and an internal resistance of 1 ohm is connected in series with a primary cell having an e.m.f of 1.5 v and an internal resistance of 100 ohm , the negative terminal of each cell being connected to to the positive terminal of the other cell. A volumeter having a resistance of 50 ohm is connected to measure the terminal voltage of the cells. Calculate the voltmeter reading and the current in each cell.

Circuit Theory Question Paper

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