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Worksheets19EE2151 CT U4 REVISION TEST
Total questions: 25
Worksheet time: 13mins
Transient Voltage across the Resistor
V/R
IR
I/R
All the
options are correct
Transient Voltage across an Inductor
L x (di/dt)
L x (dv/dt)
LI x (dv/dt)
L x (di/dv)
A circuit containing energy storage elements
Resistor
Inductor
Capacitor
Inductor and Capacitor are correct
Energy Stored in an Inductor
1/2 C^2V
1/2 CV
1/2 LI^2
2 LI^2
Time Constant in RC Series circuit
LC
RC
L/C
RLC
After how many time constants, the transient part reaches more than 99 percent of its final value?
2
3
4
5
The current in the RL circuit at a time t = 0+ is?
V/R
VR
R/V
IR
In an RC circuit , when the switch is closed, the response
do not vary with time
decays with time
rises with time
None of the options are correct
The back emf produced as an inductor charges up is proportional to
The supply EMF
The charging Current
The Voltage across the Inductor
The rate of change of the applied current
Time constant is the time taken for response to rise _________ of maximum value
100 Percentage
90 Percentage
63.2 Percentage
68.2 Percentage
For steady state current, inductor acts as
Short Circuit
Open circuit
Voltage Source
Current Source
In steady state condition capacitor acts as
Short circuit
Open circuit
Voltage Source
Circuit Blown
What is the relation between time period T and frequency?
T = 0.5 / frequency
T = 1.5 / frequency
T = 1 / frequency
All the options are correct
A Circuit containing energy dissipating element(s)
Resistor
Inductor
Capacitor
All the options are correct
Time constant of an RL series circuit is defined as the time during which the current increases to
36.8 percentage of its steady state value
68.2 percentage of its steady state value
63.2 percentage of its steady state value
73.2 percentage of its steady state value
In a RLC Transient circuit , if discriminant positive then current is
Critically Damped
Over Damped
Oscillating
No Oscillating
In a RLC Transient circuit , if discriminant Zero then current is
Critically Damped
Oscillating
No Oscillating
Under Damped
The current in the RL circuit at a time t = 0+ is?
V/R
I/R
IR
R/V
A RC circuit connected to a DC supply will, for a time after a voltage is applied to it, behave as though the capacitors were very ____________ value resistances, but these effects will disappear after a time approximately
equal to ___________ time constants.
Low and One
Low and Five
Low and Two
Low and Three
The back emf produced when an inductor is first conneted to a DC supply is
Proportional to the applied voltage
Inversely proportional to the value of inductance
Initially high and then gradually reduces
Initially low and then gradually increases
In RLC series circuit, if the voltage across capacitor is greater than voltage across inductor, then power factor of the network is
Lagging
Leading
Unity
Zero
By which of the following element(s) transients will not occur?
R
L
C
All the options are correct
A circuit having constant sources is said to be in steady state
if the current and voltages are changing
if the current and voltages do not change with impedance
if the current and voltages do not change with time
None of the options are correct
The behavior of the voltage and current, when it is changed from one state to other state is
Steady State
Transient State
Oscillating slowly
None of the options are correct
Time constant of RL Series circuit can be found from
L^2/R
L/R
LR
RC
