Questions

1		The inductor and condenser bipoles are:
A)		Dissipative
B)		Passive
C)		Conservative
D)		Active

 

2		A conservative bipole:
A)		Does not exchange energy with other bipoles in the circuit
B)		Exchanges energy outside the circuit
C)		Does not exchange energy outside the circuit
D)		Is dissipative

 

3		Instant power absorbed by a resistor:
A)		Has an average value over a null period
B)		Has an average value over a positive period
C)		Has an average value over a negative period
D)		Is constant over time

 

4		Active power absorbed by a resistor:
A)		Has an average value over a null period
B)		Has an average value over a positive period
C)		Has an average value over a negative period
D)		Is constant over time

 

5		Reactive power absorbed by a bipole:
A)		Is measured in 'watts'
B)		Is measured in 'va'
C)		Is measured in 'var'
D)		Is measured in 'J'

 

6		Calculating active power, the product of tension and current appears: :
A)		In every effective value
B)		In every maximum value
C)		In every absolute value
D)		In every instantaneous value

 

7		The apparent power of a bipole: :
A)		Is measured in 'watt'
B)		Is measured in 'va'
C)		Is measured in 'var'
D)		Is measured in 'J'

 

8		The apparent power of a resistor: :
A)		Coincides with active power
B)		Coincides with reactive power
C)		Is of average value during a null period
D)		Is a sinusoidal variable in time

 

9		The apparent power of an inductor: :
A)		Coincides with active power
B)		Coincides with reactive power
C)		Is of average value during a null period
D)		Is a sinusoidal variable in time

 

10		Complex power:
A)		Is always positive
B)		Is a phasor
C)		Is a real number
D)		Is a complex number