EE_1

An ideal voltage source should have

• large value of emf

• small value of emf

• zero source resistance

• infinite source resistance

Which of the following statements is incorrect?

• Resistance is a passive element

• Inductor is an active element

• Current source is an active element

• voltage source is an active element

An active element in a circuit is one which

• receives energy

• supplies energy

• both receives and supplies energy

• none

An unilateral element in a circuit is

• Resistance

• inductor

• capacitor

• diode

The value of current (I) in the given circuit

Superposition theorem is not applicable for

• voltage calculations

• Current Calculation

• power calculations

circuit parameter that opposes the change in the circuit voltage is

• resistance

• inductance

• capacitance

• all of the above

A 2W resistance having current of 2A will dissipate the power of

• 8VA

• 8VAr

• 8W

• 8J

To obtained the maximum power from a source, the load resistance must equal to the __________ of the circuit.

When two sine waves are 90° out of phase

• each has its peak value at the same time

• each has its minimum value at the same time

• one has its positive peak when the other has its negative peak

• one has its positive peak when the other has zero value