Q1. Which of the following quantities remain the same in all parts of a parallel circuit?
(A) Power
(B) Current
(C) Voltage
(D) None of these

Q2. Out of the following the material having a negative temperature co-efficient of resistance is?
(A) Aluminum
(B) Carbon
(C) Copper
(D) Brass

Q3. Varistors are
(A) insulators
(B) non-linear resistors
(C) conductors
(D) scr

Q4. The property of a conductor due to which it passes current is called?
(A) resistance
(B) conductance
(C) reluctance
(D) permeability

Q5. Which one of the following is the best conductor of electricity?
(A) Copper
(B) Silver
(C) Iron
(D) Carbon

Q6. Which of the following quantities remain the same in all parts of a series circuit?
(A) Power
(B) Current
(C) Voltage
(D) None of these

Q7. Which of the following material has nearly zero temperature co-efficient of resistance?
(A) Porcelain
(B) Manganin
(C) Carbon
(D) Copper

Q8. The insulation on a current carrying conductor is provided
(A) to prevent leakage of current
(B) to prevent shock
(C) both of these
(D) None of these

Q9. Out of the following which is an insulating material?
(A) Silver
(B) Paper
(C) Copper
(D) Gold

Q10. Select the correct statement:
(A) A galvanometer with high resistance in parallel is a voltmeter
(B) A galvanometer with low resistance in series is an ammeter
(C) A galvanometer with low resistance in parallel is a voltmeter
(D) A galvanometer with high resistance in series is an ammeter

Q11. With rise in temperature the resistance of semi-conductors
(A) decreases
(B) remains constant
(C) increases
(D) first decreases and then increases

Q12. Which of the following material is used for making the filament of an electric bulb:
(A) aluminium
(B) tungsten
(C) carbon
(D) nickel

Q13. Resistance is reciprocal of
(A) resistance
(B) conductance
(C) reluctance
(D) permeability

Q14. Out of the following, Ohms law is not applicable to
(A) carbon resistors
(B) vacuum tubes
(C) high voltage circuits
(D) None of these

Q15. For which of the following have ampere second as the unit?
(A) Charge
(B) Reluctance
(C) Power
(D) Permeability

Q16. An instrument which is used to detect electric current is:
(A) wattmeter
(B) galvanometer
(C) voltmeter
(D) potentiometer

Q17. The materials which have a large number of free electrons and offer a low resistance are called
(A) insulators
(B) conductors
(C) semi conductors
(D) None of these

Q18. The S.I. unit of power is
(A) coulomb
(B) watt
(C) Henry
(D) watt-hour

Q19. A no-load test is performed on a transformer to determine?
(A) core loss
(B) magnetising current
(C) magnetising current and loss
(D) copper loss

Q20. If residual magnetism is present in a DC generator, the induced EMF at zero speed will be
(A) small
(B) zero
(C) same as rated voltage
(D) very high

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