Home
Current Affairs January 2024

What is the correct answer?

4

What refers to the lowest voltage across any insulator that can cause current flow?

A. Conduction voltage

B. Critical voltage

C. Breakdown voltage

D. Voltage capacity

Correct Answer :

C. Breakdown voltage


Related Questions

What is the correct answer?

4

The distance between the capacitor plates increases two timesa then its capacitance

A. Increases two times

B. Increases four times

C. Decreases two times

D. Decreases four times

What is the correct answer?

4

Delta to wye or wye to delta transformation technique is applied to a ___ network.

A. One-terminal

B. Two-terminal

C. Three-terminal

D. Complex

What is the correct answer?

4

The graph between an alternating quantity and time is called

A. Sine wave

B. Curve

C. Waveform

D. A plot

What is the correct answer?

4

In an ac wavea 30 degrees of phase is ___ of a cycle.

A. ½

B.

What is the correct answer?

4

The reason why electrical appliances are connected in parallel.

A. It is a simple circuit

B. This makes the operation of appliances independent with each other

C. This results in reduced power consumption

D. All of the above

What is the correct answer?

4

A series RL circuit has R of 10 and XL of 5 a its impedance in rectangular form is given by

A. 10 +j 5

B. 10 + j 10

C. 10 ± j 5

D. 10 ± j 10

What is the correct answer?

4

For a parallel ACcircuita ___ is used as a reference phasor.

A. Voltage

B. Power

C. Current

D. Resistance

What is the correct answer?

4

What is the total resistance of a two equal valued resistors in series?

A. The difference of both

B. The product of both

C. Twice as one

D. The sum of their reciprocals

What is the correct answer?

4

If three 9 mH inductors are connected in parallel without mutual inductance then the total i nductance is

A. 3 mH

B. 9 mH

C. 27mH

D. 18 mH

What is the correct answer?

4

If a coil has a Q of 10a it means that

A. The energy stored in the magnetic field of the coil is 10 times the energy wasted in its resistance

B. The energy wasted in its resistance is 10 times the energy stored in the magnetic field of the coil

C. It is a low Q coil

D. It is a high Q coil

What is the correct answer?

4

When resistance are connected in parallela the total resistance is

A. Less than the smallest resistance in the connection

B. Greater than the smallest resistance in the connection

C. Between the smallest and greatest resistance in the connection

D. Increasing and decreasing depending upon the supply voltage

What is the correct answer?

4

What is the value of a carbon composition resistor with the following color code: Browna whitea orangea red

A. 190 ; 10 %

B. 19 k ; 2 %

C. 19 k ; 20 %

D. 1.9 k ; 2 %

What is the correct answer?

4

The area of capacitor plates increases two timesa then its capacitance

A. Increases two times

B. Increases four times

C. Decreases two times

D. Decreases four times

What is the correct answer?

4

In adding or subtracting phasor quantitiesa ___ form is the most convenient.

A. Polar

B. Rectangular

C. Trigonometric

D. Exponential

What is the correct answer?

4

In an RL series circuita

A. Current lags voltage by less than 90�

B. Current lags voltage by 180�

C. Current lags voltage by 90�

D. Current leads voltage by 90�

What is the correct answer?

4

With double the number of turns by the same length and areaa the inductance is

A. The same

B. Doubled

C. Quartered

D. Quadrupled

What is the correct answer?

4

How many degrees of phase represents one full cycle?

A.

B.

What is the correct answer?

4

Capacitance increase with

A. Larger plate area and less distance between plates

B. Larger plate area and greater distance between plates

C. Smaller plate area and less distance between plates

D. Higher values of applied voltage

What is the correct answer?

4

A switch designed to have low capacitance between its terminal when open.

A. LOCAP switch

B. AntiLOCAP switch

C. Anticapacitance switch

D. Capacitance switch

What is the correct answer?

4

The reactance curve is a plot of frequency versus _____ for a series RLCcircuit

A. Current

B. Voltage

C. Gain

D. Impedance

What is the correct answer?

4

The ratio between the reactive power and the apparent power of an ac load is called

A. Quality factor

B. Power factor

C. Power ratio

D. Reactive power

What is the correct answer?

4

A 5 F capacitor charge to 5V has a stored charge equal to

A. 1 c

B. 5 c

C. 25 C

D. 200 c

What is the correct answer?

4

Electron flow assumes charges flow from

A. Negative to positive

B. Negative to negative

C. Positive to negative

D. Positive to positive

What is the correct answer?

4

What is the other name of relative permittivity?

A. Dielectric strength

B. Potential gradient

C. Breakdown voltage

D. Specific inductance capacity

What is the correct answer?

4

What is the hot resistance of a 100 Wa 220 V incandescent lamp?

A.

B.

What is the correct answer?

4

Which of the following elements is active?

A. Resistor

B. Inductor

C. Capacitor

D. Ideal voltage source

What is the correct answer?

4

Which of the following is the most popular waveform?

A. Sinusoidal

B. Square wave

C. Triangular

D. Sawtooth

What is the correct answer?

4

The admittance of a parallel RLC circuit is found to be the ___ sum of conductance and susceptances.

A. Algebraic

B. Arithmetic

C. Vector

D. Phasor

What is the correct answer?

4

The reason why electrical appliances are not connected in series.

A. Greater electrical power saving

B. Power loss is minimum

C. Appliances have different current ratings

D. All of the above

What is the correct answer?

4

What is the cross-sectional are of a conductor whose diameter is 0.001 inch?

A. One micron

B. One angstrom

C. One steradian

D. One circular mil