Network Theory objective questions and answers

31.  A practical current source is represented by

   A. A resistance in series with an ideal current source

   B. A resistance in parallel with an ideal current source

   C. A resistance in parallel with an ideal voltage source

   D. None of the above

32.  An electric circuit with 10 branches and 7 nodes will have

   A. 3 loop equations

   B. 4 loop equations

   C. 7 loop equations

   D. 10 loop equations

33.  The terminals across the source are................... if a current source is to be neglected

   A. Open-circuited

   B. Short-circuited

   C. Replaced by a capacitor

   D. Replaced by a source resistance

34.  Which of the following statements is incorrect?

   A. Resistance is a passive element

   B. Inductor is a passive element

   C. Current source is a passive element

   D. Voltage source is an active element

35.  When an electric current flows through a conductor its temperature rises. This is because of

   A. Mutual collisions between metal atoms

   B. Mutual collisions between conducting electrons

   C. Collisions between conducting electrons and atoms

   D. Release of conduction electrons from parent atoms

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