Resistor with colored bands in the body
Wire-wound resistor
Carbon-composition resistor
Potentiometer
Rheostat
Correct Answer :
B. Carbon-composition resistor
Related Questions
What is the efficiency under the conditions of maximum power transfer?
What can be used to estimate resonant frequency and to find reactance at any frequency for any value of capacitor or inductor?
Smith chart
Reactance chart
Impedance chart
Resonance chart
What is the most convenient way of achieving large capacitance?
By using multiplate construction
By using air as dielectric
By decreasing distance between plates
By using dielectric of low permittivity
When the power factor of a circuit is zeroa
Power absorbed is maximum
Power absorbed is minimum
Power absorbed is zero
The impedance is minimum
Transient period is considered over after
Which of the following is the peakiest?
Square wave
Sinusoidal wave
Triangular wave
Rectangular wave
Conventional flow assumes charges flow from
Positive to negative
Positive to positive
Negative to positive
Negative to negative
What refers to the lowest voltage across any insulator that can cause current flow?
Conduction voltage
Critical voltage
Breakdown voltage
Voltage capacity
In a pure capacitancea
Current leads voltage by 90�
Current leads voltage by 180�
Current lags voltage by 90�
Current lags voltage by 180�
The internal resistance of an ideal voltage source is
Infinite
Equal to the load resistance
Zero
To be determined
Which of the following capacitors has the highest cost per F?
Plastic
Air
Mica
Electrolytic
The current is ____ times the maximum current at half-power points of a resonance curve.
In the 5-band method of capacitor color codinga the first band indicates
Temperature coefficient
Tolerance
1stdigit
Capacitance value
Which statement is true?
A series resonant circuit is of high impedance
A parallel resonant circuit is of low impedance
A series resonant circuit is inductive if it operates at a frequency higher than the resonant frequency
A parallel resonant circuit is inductive if it operates at a frequency higher than the resonant frequency
When the net reactance in a series coil-capacitor circuit is zero at frequency fa the nature of its reactance of frequency 2f is
Inductive
Capacitive
Resistive
Infinite
What is the reading of an ohmmeter for a shorted capacitor?
Zero
Infinity
k
M
What is the cross-sectional are of a conductor whose diameter is 0.001 inch?
One micron
One angstrom
One steradian
One circular mil
Property of an electric circuit that dissipates electric energy
Reactance
Impedance
Resistance
Conductance
A tank circuit is a
Parallel LC circuit
Series LCcircuit
A resonant circuit
A non-resonant circuit
The value of temperature coefficient ( ) is dependent upon
The nature of material and temperature
The length of material
The cross-sectional area of the material
The volume of the material
Barium-strontium titanite dielectric material is also called
Ceramic
Polyster
Electrolytic
Bakelite
The resistance of an insulator ___ when its temperature is increased.
Decreases
Remains the same
Increases
Varies
A capacitor requires 12 C of charge to raise its potential of 3 V. What is the capacitance of the capacitor?
36 F
15 F
0.25 F
4 F
The admittance of a parallel RLC circuit is found to be the ___ sum of conductance and susceptances.
Algebraic
Arithmetic
Vector
Phasor
When capacitors are connected in seriesa the total capacitance is
Smaller than the smallest capacitor
Smaller than the largest capacitor
Greater than any of the capacitor
Greater than the largest capacitor
Which of the following is a preferred resistor value?
43a000
54a321
What is expected when two 20 k a 1 watt resistor in parallel are use instead of one 10 k a 1 watt?
Provides higher current
Provides less power
Provides more power
Provides wider tolerance
Which of the following materials has the lowest dielectric strength?
Glass
Paper
Mica
Teflon
Which factor does not affect resistance?
Length
Resistivity
Cross-sectional area
Mass
A capacitor opposes change in
Voltage
Current
Voltage and current
Neither voltage nor current