Question 1

The voltage across R in an RC circuit is called a(n)

Accepted Answer

A)  integrated output 
B)  differentiated output 
C)  passive output 
D)  reactive output 
A)  integrated output 
B)  differentiated output 
C)  passive output 
D)  reactive output

Question 2

RC circuits are more common than RL circuits because

Accepted Answer

A)  capacitors are more economical 
B)  capacitors are larger 
C)  capacitors have strong magnetic fields 
D)  capacitors cost more to manufacture 
A)  capacitors are more economical 
B)  capacitors are larger 
C)  capacitors have strong magnetic fields 
D)  capacitors cost more to manufacture

Question 3

With nonsinusoidal voltage and current, the effect of L or C is to produce a change in waveshape.

Accepted Answer

A) True 
 B)False

Question 4

The voltage across a capacitor can change instantaneously.

Accepted Answer

A) True 
 B)False

Question 5

What is the time constant of a 20-H coil having 1000 ? of series resistance?

Accepted Answer

A)  0.2 s 
B)  2.0 s. 
C)  20 ms 
D)  20 ms. 
A)  0.2 s 
B)  2.0 s. 
C)  20 ms 
D)  20 ms.

Question 6

Whether an RC time constant is long or short depends on the

Accepted Answer

A)  capacitance only 
B)  resistance only 
C)  impedance 
D)  pulse width of the applied voltage 
A)  capacitance only 
B)  resistance only 
C)  impedance 
D)  pulse width of the applied voltage

Question 7

The voltage across any inductance, vL is equal to

Accepted Answer

A)  L(di/dt) 
B)  XL(di/dt) 
C)  L/(di/dt) 
D)  XL/(di/dt) 
A)  L(di/dt) 
B)  XL(di/dt) 
C)  L/(di/dt) 
D)  XL/(di/dt)

Question 8

For an RL integrator

Accepted Answer

A)  the output is taken across the resistor 
B)  the output is taken across the inductor 
C)  the input must be a sine wave to get pulses at the output 
D)  the applied voltage cannot be dc 
A)  the output is taken across the resistor 
B)  the output is taken across the inductor 
C)  the input must be a sine wave to get pulses at the output 
D)  the applied voltage cannot be dc

Question 9

The temporary condition that exists until the circuit's current or voltage reaches its steady-state value is called the

Accepted Answer

A)  saturation point 
B)  frequency response 
C)  transient response 
D)  transit time 
A)  saturation point 
B)  frequency response 
C)  transient response 
D)  transit time

Question 10

For an RL differentiator the output is taken across the resistor.

Accepted Answer

A) True 
 B)False

Question 11

The time constant is what percentage of change in current through L or the voltage across C?

Accepted Answer

A)  36.8% 
B)  63.2% 
C)  70.7% 
D)  29.3% 
A)  36.8% 
B)  63.2% 
C)  70.7% 
D)  29.3%

Question 12

Very large capacitors are sometimes placed across the terminals of a battery in order to improve the transient response of the battery.

Accepted Answer

A) True 
 B)False

Question 13

An RC ______________ can also be described as a circuit whose output is proportional to the charge being stored.

Accepted Answer

The answer of An RC ______________ can also be described...

Question 14

XC and the RC time constant are both measures of the reaction of C to a change in _______________.

Accepted Answer

Question 15

With nonsinusoidal voltage and current, the effect of L or C is to produce

Accepted Answer

A)  a change in waveshape 
B)  out of phase voltages or currents 
C)  LC filters 
D)  oscillator circuits 
A)  a change in waveshape 
B)  out of phase voltages or currents 
C)  LC filters 
D)  oscillator circuits

Question 16

More series resistance makes the L/R time constant ______________.

Accepted Answer

The answer of More series resistance makes the L/R time...

Question 17

The time constant is the time for a change of 63.2% in the current through L or the voltage across C.

Accepted Answer

A) True 
 B)False

Question 18

RC specifies the time it takes C to charge to what percentage of the charging voltage?

Accepted Answer

A)  37% 
B)  63% 
C)  70.7% 
D)  29.3% 
A)  37% 
B)  63% 
C)  70.7% 
D)  29.3%

Question 19

In electronic circuits, the time constant is useful in analyzing the effect of L or C on the waveshape of ______________ voltages.

Accepted Answer

The answer of In electronic circuits, the time constant is...

Question 20

The voltage across R in an RC circuit is called a ______________ output because vR can change instantaneously.

Accepted Answer

Exam 23: RC and LR Time Constants

The voltage across R in an RC circuit is called a(n)

RC circuits are more common than RL circuits because

With nonsinusoidal voltage and current, the effect of L or C is to produce a change in waveshape.

The voltage across a capacitor can change instantaneously.

What is the time constant of a 20-H coil having 1000 ? of series resistance?

Whether an RC time constant is long or short depends on the

The voltage across any inductance, vL is equal to

For an RL integrator

The temporary condition that exists until the circuit's current or voltage reaches its steady-state value is called the

For an RL differentiator the output is taken across the resistor.

The time constant is what percentage of change in current through L or the voltage across C?

Very large capacitors are sometimes placed across the terminals of a battery in order to improve the transient response of the battery.

An RC ______________ can also be described as a circuit whose output is proportional to the charge being stored.

XC and the RC time constant are both measures of the reaction of C to a change in _______________.

With nonsinusoidal voltage and current, the effect of L or C is to produce

More series resistance makes the L/R time constant ______________.

The time constant is the time for a change of 63.2% in the current through L or the voltage across C.

RC specifies the time it takes C to charge to what percentage of the charging voltage?

In electronic circuits, the time constant is useful in analyzing the effect of L or C on the waveshape of ______________ voltages.

The voltage across R in an RC circuit is called a ______________ output because vR can change instantaneously.

Introduction

Electricity

Resistors

Ohms Law

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Voltage Dividers and Current Dividers

Analog and Digital Multimeters

Kirchhoff S Laws

Network Theorems

Conductors and Insulators

Batteries

Magnetism

Electromagnetism

Alternating Voltage and Current

Capacitance

Capacitive Reactance

Capacitive Circuits

Inductance

Inductive Reactance

Inductive Circuits

Alternating Current Circuits

Complex Numbers for Ac Circuits

Resonance

Filters

Three-Phase Ac Power Systems

Diodes and Diode Applications

Bipolar Junction Transistors

Transistor Amplifiers

Field Effect Transistors

Power Amplifiers

Thyristors

Operational Amplifiers

Filters

The voltage across any inductance, v_L is equal to

X_C and the R_C time constant are both measures of the reaction of C to a change in _______________.

The voltage across R in an RC circuit is called a ______________ output because v_R can change instantaneously.