**101. The potential gradient in a cable is**

maximum in

maximum in

**A. Conductor**

B. Outer sheath

C. Insulation

D. Uniformly all over

**102. The Q-factor of a parallel resonant circuit is also known**

as

as

**A. Current magnification**

factor

factor

B. Voltage

magnification factor

magnification factor

C. Load factor

D. Leakage factor

**103. The Q-factor of a series resonant circuit is also known as**

A. Current

magnification factor

magnification factor

**B. Voltage magnification**

factor

factor

C. Load factor

D. Leakage factor

**104. What is the form factor of a triangular wave?**

**A. 1.16**

B. 1.11

C. 1.73

D. 1.41

**105. In a rectangular wave, the form factor is**

A. 1.11

B. 1.16

**C. 1.0**

D. 1.73

**106. Which of the following dielectric**

materials makes the highest-capacitance capacitor?

materials makes the highest-capacitance capacitor?

A. Air

**B. Barium-strontium**

titanite

titanite

C. Mica

D. Electrolyte

**107. In a circuit, an active element is one which**

**A. Supplies energy**

B. Receives energy

C. Both supplies and

receives energy

receives energy

D. Amplifies signal

**108. An electric circuit contains**

A. Passive elements

B. Active elements

**C. Both active and passive**

elements

elements

D. Reactive elements

**109. What is the hot resistance of a 100 W,**

220 V incandescent lamp?

220 V incandescent lamp?

A. 2.2 Ω

B. 22 Ω

**C. 484 Ω**

D. 4.84 Ω

**110. Which statement is true about a passive circuit?**

**A. A circuit with neither**

a source of current nor a source of potential difference

a source of current nor a source of potential difference

B. A circuit with a

voltage source

voltage source

C. A circuit with a

current source

current source

D. A circuit with only

resistance as a load

resistance as a load

**111. What is a closed path made of several**

branches of the network called?

branches of the network called?

A. Junction

B. Node

C. Terminal

**D. Loop**

**112. The internal resistance of an ideal voltage source is**

A. Infinite

B. Equal to the load

resistance

resistance

**C. Zero**

D. To be determined

**113. What is the conductance of a circuit**

having three 10 Ω resistors in parallel?

having three 10 Ω resistors in parallel?

**A. 0.3 S**

B. 3.33 S

C. 0.33 S

D. 30 S

**114. Electric energy refers to**

A. Volt divided by

coulomb

coulomb

B. Volt-ampere

**C. Volt-coulomb**

D. Watt divided by

time

time

**115. A capacitor requires 12 μC of charge**

to raise its potential of 3 V. What is the capacitance of the capacitor?

to raise its potential of 3 V. What is the capacitance of the capacitor?

A. 36 μF

B. 15 μF

C. 0.25 μF

**D. 4 μF**

**116. A capacitor opposes change in**

**A. Voltage**

B. Current

C. Voltage and current

D. Neither voltage nor

current

current

**117. What is the total resistance of a two**

equal valued resistors in series?

equal valued resistors in series?

A. The difference of

both

both

B. The product of both

**C. Twice as one**

D. The sum of their

reciprocals

reciprocals

**118. The ratio of maximum value to the**

effective value of an alternating quantity is called

effective value of an alternating quantity is called

A. Form factor

**B. Peak factor**

C. Dynamic factor

D. Leakage factor

**119. For series capacitors, total charge is**

A. The sum of

individual charges

individual charges

**B. Equal to the charge of**

either capacitors

either capacitors

C. Equal to the

product of the charges

product of the charges

D. The quotient of the

charges

charges

**120. Series resonant circuit is sometimes known as**

A. Rejector circuit

**B. Acceptor circuit**

C. Inductive circuit

D. Capacitive circuit

**121. Parallel resonant circuit is sometimes called as**

A. Acceptor circuit

**B. Rejector circuit**

C. Inductive circuit

D. Capacitive circuit

**122. When two pure sine waves of the same**

frequency and the same amplitude which are exactly 180˚ out-of-phase are added

together, the result is

frequency and the same amplitude which are exactly 180˚ out-of-phase are added

together, the result is

A. A wave with twice

the amplitude

the amplitude

B. A wave with half

the amplitude

the amplitude

**C. Zero signal**

D. A wave with twice

the frequency

the frequency

**123. If two complex conjugates are added,**

___ components results.

___ components results.

**A. In-phase**

B. Quadrature

C. Complex

D. Out-of-phase

**124. If an emf in circuit A produces a**

current in circuit B, then the same emf in circuit B produces the same current

in circuit A. this theorem is known as

current in circuit B, then the same emf in circuit B produces the same current

in circuit A. this theorem is known as

A. Maximum power

transfer theorem

transfer theorem

B. Millman’s theorem

**C. Reciprocity theorem**

D. Norton’s theorem

**125. According to Gauss theorem, flux can be equated to**

**A. Charge**

B. Field intensity

C. Current

D. Voltage

**126. An open resistor when checked with an ohmmeter reads**

A. Zero

**B. Infinite**

C. High but within the

tolerance

tolerance

D. Low but not zero

**127. Norton’s theorem is ____ Thevenin’s theorem.**

A. The same as

**B. The converse of**

C. Older that

D. More accurate than

**128. What value of R is needed with a 0.05**

μF C for an RC time constant of 0.02 s?

μF C for an RC time constant of 0.02 s?

A. 400 Ω

B. 400 MΩ

C. 400 GΩ

**D. 400 kΩ**

**129. Which of the following is the statement of Ohm’s law?**

A. Electric current is

directly proportional to both voltage and resistance

directly proportional to both voltage and resistance

**B. Electric current varies**

directly as the voltage and inversely as the resistance

directly as the voltage and inversely as the resistance

C. Electrical power is

directly proportional to the resistance and inversely as the current squared

directly proportional to the resistance and inversely as the current squared

D. Electrical power is

directly proportional to both voltage squared and the resistance

directly proportional to both voltage squared and the resistance

**130. The admittance of a parallel RLC circuit is found to be the**

___ sum of conductance and susceptances.

___ sum of conductance and susceptances.

A. Algebraic

B. Arithmetic

C. Vector

**D. Phasor**

**131. A wire of one kilometer length has a**

resistance of 20 Ω. If the length is halved, then the new resistance is ___ the

original resistance.

resistance of 20 Ω. If the length is halved, then the new resistance is ___ the

original resistance.

**A. Half**

B. Twice

C. One-fourth

D. Three times

**132. A series-parallel combination of identical resistors will**

**A. Increase the power**

rating compared with one resistor alone

rating compared with one resistor alone

B. Increase the

voltage rating compared with one resistor alone

voltage rating compared with one resistor alone

C. Reduce the voltage

rating compared with resistor alone

rating compared with resistor alone

D. Result in an

expensive circuit

expensive circuit

**133. The ___ of an alternating quantity is**

defined as the fractional part of a period or cycle through which the quantity

has advanced from selected origin.

defined as the fractional part of a period or cycle through which the quantity

has advanced from selected origin.

**A. Phase**

B. Frequency

C. Amplitude

D. Waveform

**134. An inductive circuit of resistance**

16.5 Ω and inductance of 0.14 H takes a current of 25 A. if the frequency is 50

Hz, find the supply voltage.

16.5 Ω and inductance of 0.14 H takes a current of 25 A. if the frequency is 50

Hz, find the supply voltage.

A. 1501 V

**B. 1174 V**

C. 1877 V

D. 991 V

**135. Which of the following has a positive**

temperature coefficient?

temperature coefficient?

A. Mica

**B. Manganin**

C. Silicon

D. Carbon

**136. The ratio of the flux density to the**

electric field intensity in the dielectric is called

electric field intensity in the dielectric is called

**A. Permittivity**

B. Field intensity

C. Permeability

D. Elasticity

**137. It is impossible to change the voltage**

across a capacitor instantly, as this would produce ___ current.

across a capacitor instantly, as this would produce ___ current.

**A. Infinite**

B. Zero

C. Low

D. High

**138. Which of the following is not a factor**

affecting capacitance of a basic capacitor?

affecting capacitance of a basic capacitor?

A. Area of plates

**B. Number of plates**

C. Distance between

plates

plates

D. Dielectric material

used

used

**139. When voltage is applied across a**

ceramic dielectric the electrostatic field produced is 50 times greater than

air dielectric. The dielectric constant of ceramic therefore is

ceramic dielectric the electrostatic field produced is 50 times greater than

air dielectric. The dielectric constant of ceramic therefore is

**A. 50**

B. 100

C. 16.67

D. 5

**140. The reason why alternating current can induce voltage is**

A. It has high peak

value

value

B. It has a stronger

magnetic field than direct current

magnetic field than direct current

C. It has a constant

magnetic field

magnetic field

**D. It has a varying**

magnetic field

magnetic field

**141. When two unequal values of resistors**

are connected in parallel across a dc source, greater current flows through the

are connected in parallel across a dc source, greater current flows through the

A. Higher resistance

**B. Lower resistance**

C. Higher wattage

resistance

resistance

D. Lower wattage

resistance

resistance

**142. A real current source has**

A. Infinite internal

resistance

resistance

B. Zero internal

resistance

resistance

**C. Large internal**

resistance

resistance

D. Small internal

resistance

resistance

**143. What is the cross-sectional are of a**

conductor whose diameter is 0.001 inch?

conductor whose diameter is 0.001 inch?

A. One micron

B. One angstrom

C. One steradian

**D. One circular mil**

**144. Which of the following describes the action of a capacitor?**

**A.**

**Stores electrical energy**

B. Opposes changes in

current flow

current flow

C. Creates a dc

resistance

resistance

D. Converts ac to dc

**145. High resistance values are a**

consequence of the ___ of the film.

consequence of the ___ of the film.

A. Thickness

B. Length

**C. Thinness**

D. Area

**146. For parallel capacitors, total charge is**

**A. The sum of individual**

charges

charges

B. Equal to the charge

of either capacitors

of either capacitors

C. Equal to the

product of the charges

product of the charges

D. The quotient of the

charges

charges

**147. Which waveform in which the rms value**

and the mean value are equal?

and the mean value are equal?

**A. Square wave**

B. Triangular wave

C. Sine wave

D. Sawtooth

**148. In a series circuit with unequal resistances the**

**A. Highest R has the**

highest V

highest V

B. Lowest R has the

highest V

highest V

C. Lowest R has the

highest I

highest I

D. Highest R has the

highest I

highest I

**149. In a parallel bank with unequal branch resistances**

A. The highest R has

the highest I

the highest I

**B. The lowest R has the**

highest V

highest V

C. The lowest R has

the highest V

the highest V

D. The highest R has

the highest V

the highest V

**150. A rheostat is a form of**

**A. Variable resistor**

B. Variable capacitor

C. Potentiometer

D. Thermocouple

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