Circuit Components (Resistors, Inductors and Capacitors and Their Residues) MCQs

This Portion of Electrical andElectronic Measurements and Measuring instruments contains Circuit Components (Resistors, Inductors and Capacitors and Their Residues) MCQs (Multiple Choice Questions and Answers) / Objective Type Questions and Answers.

This Section covers below lists of topics.

RESISTORS

Residues.
Resistors.
Resistance Standards.
Low Resistance Standards.
Frequency Errors of Resistors.
Sheet metal Resistors.
Methods of Reducing Residual Inductance and Capacitance in Resistors.
Resistance Boxes.
Thin Film Resistors.
Shielded Resistors.

INDUCTORS

Standards of Inductance.
Standards of Mutual Inductance.
Standards of Self-Inductance.
Variable Inductance.
Inductors for High Frequency Work.
Inductors for Low Frequency Work.
Frequency Errors in Inductors.

CAPACITORS

Loss Angle and Power Factor of capacitors.
Distributed Capacitance.
Capacitance Standards.
Vacuum and Gas-filled Capacitors.
Solid Dielectric Capacitors Variable Capacitors.
Decade Capacitance Boxes.
Frequency Errors in Capacitors.

PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE

1. The residues of a resistor at high frequencies are :

Interturn capacitance
Inductance
Ground capacitance
All of the above

2. Materials used for precision resistors should have

Low resistivity
High resistance temperature coefficient
High thermoelectric emf against copper
None of the above

3. Metal spools cannot be used for resistors meant for a.c applications because:

Hysteresis losses are produced in them
Hysteresis and eddy current losses are produced in them
They produced different expansion leading to stresses in resistance wire
Their use results in poor heat dissipation.

4. Accelerated ageing is done on coils for standard resistors in order to :

Make the resistance stable with time
Reduce inductive and capacitive effects
Reduce hot spot temperatures
None of the above

5. Four terminal resistors are used for resistance values :

Greater than 10Ω
Greater than 1 Ω
Less than 1 Ω
Of the order of MΩ

6. The conditions for a resistor to have the same value of resistance at medium frequencies as with d.c is :

CR²= L
CR²= 2L
CR²= 𝛚L
CR²= 2𝛚L

7. A 100 Ω resistor has an effective inductance of 0.1µ H and a distributed capacitance of 20 pF. Its time constant at medium frequencies is :

1 ns
2 ns
– 1 ns
0

8. In resistance standards, bifilar winding arrangement is used to reduce :

Capacitance of winding
Inductance of winding
Both capacitance and inductance of winding
None of the above

9. The resistance coil of a winding has a distributed capacitance of 9 pF. When wound in a single section. The same winding is sectionalized and is wound in three sections connected in series.The distributed capacitance of the winding with new arrangement is :

9 pF
3 pF
27 pF
1 pF

10. In order that value of an inductance standard should remain constant irrespective of the value of current carried by its coil :

Cores of ferromagnetic materials should be used
Air cored coils should be used
Solid conductors should be used
All of the above

11. In order that the values of effective resistance and inductance of a standard remain unaffected due to changes in frequency :

Ferromagnetic materials should not be used for core
Coils should use stranded conductors
Use of metallic parts should be avoided
All of the above

12. The value of effective inductance standard inductors at low and medium frequencies is approximately :

L(1- 𝛚²LC)
𝛚L(1+ 𝛚²LC)
L(1+ 𝛚²LC)
L(1+2 𝛚²LC)

13. An imperfect capacitor is represented by a capacitance C_p, in parallel with a resistance R_p. the value of its dissipation factor (tan δ) is :

𝛚C_pR_p
𝛚² C_pR_p
1/(ω² CpRp)
1/(ω CpRp )

14. Capacitors with solid dielectric materials are used because :

The give a reduced dielectric loss
They are smaller in size as compared with air capacitors
They have a lower capacitance value as compared with air capacitors.
None of the above

15. The effective value of capacitance of standard capacitor at low and medium frequencies is

C/(1 - ω² LC)
C/(1 + ω² LC)
C/(1 - 2ω² LC)
C/(1 + 2ω² LC)

EXAMRADAR

For Solo Learner Computer science

Electrical and Electronic Measurements – Circuit Components (Resistors, Inductors and Capacitors and Their Residues) MCQs

1. The residues of a resistor at high frequencies are :

2. Materials used for precision resistors should have

3. Metal spools cannot be used for resistors meant for a.c applications because:

4. Accelerated ageing is done on coils for standard resistors in order to :

5. Four terminal resistors are used for resistance values :

6. The conditions for a resistor to have the same value of resistance at medium frequencies as with d.c is :

7. A 100 Ω resistor has an effective inductance of 0.1µ H and a distributed capacitance of 20 pF. Its time constant at medium frequencies is :

8. In resistance standards, bifilar winding arrangement is used to reduce :

9. The resistance coil of a winding has a distributed capacitance of 9 pF. When wound in a single section. The same winding is sectionalized and is wound in three sections connected in series.The distributed capacitance of the winding with new arrangement is :

10. In order that value of an inductance standard should remain constant irrespective of the value of current carried by its coil :

11. In order that the values of effective resistance and inductance of a standard remain unaffected due to changes in frequency :

12. The value of effective inductance standard inductors at low and medium frequencies is approximately :

13. An imperfect capacitor is represented by a capacitance C_p, in parallel with a resistance R_p. the value of its dissipation factor (tan δ) is :

14. Capacitors with solid dielectric materials are used because :

15. The effective value of capacitance of standard capacitor at low and medium frequencies is

Electrical and Electronic Measurements – Circuit Components (Resistors, Inductors and Capacitors and Their Residues) MCQs

1. The residues of a resistor at high frequencies are :

2. Materials used for precision resistors should have

3. Metal spools cannot be used for resistors meant for a.c applications because:

4. Accelerated ageing is done on coils for standard resistors in order to :

5. Four terminal resistors are used for resistance values :

6. The conditions for a resistor to have the same value of resistance at medium frequencies as with d.c is :

7. A 100 Ω resistor has an effective inductance of 0.1µ H and a distributed capacitance of 20 pF. Its time constant at medium frequencies is :

8. In resistance standards, bifilar winding arrangement is used to reduce :

9. The resistance coil of a winding has a distributed capacitance of 9 pF. When wound in a single section. The same winding is sectionalized and is wound in three sections connected in series.The distributed capacitance of the winding with new arrangement is :

10. In order that value of an inductance standard should remain constant irrespective of the value of current carried by its coil :

11. In order that the values of effective resistance and inductance of a standard remain unaffected due to changes in frequency :

12. The value of effective inductance standard inductors at low and medium frequencies is approximately :

13. An imperfect capacitor is represented by a capacitance Cp, in parallel with a resistance Rp. the value of its dissipation factor (tan δ) is :

14. Capacitors with solid dielectric materials are used because :

15. The effective value of capacitance of standard capacitor at low and medium frequencies is

13. An imperfect capacitor is represented by a capacitance C_p, in parallel with a resistance R_p. the value of its dissipation factor (tan δ) is :