Home
Current Affairs January 2024

What is the correct answer?

4

When two unequal values of resistors are connected in parallel across a dc sourcea greater current flows through the

A. Higher resistance

B. Lower resistance

C. Higher wattage resistance

D. Lower wattage resistance

Correct Answer :

B. Lower resistance


Related Questions

What is the correct answer?

4

An inductor carries 2 A dc. If its inductance is 100 Ha then what is its inductive reactance?

A. Zero

B. 1.3 k

What is the correct answer?

4

In an ac circuit with XL and R in seriesa the

A. Voltages across R and XL are in phase

B. Voltage across R lags the voltage across XLby 90°

C. Voltages across R and XL are 180° outof-phase

D. Voltage across R leads the voltage across XLby 90°

What is the correct answer?

4

At parallel resonancea the currents flowing through L and C are

A. Infinite

B. Zero

C. Unequal

D. Equal

What is the correct answer?

4

The Q-factor of a parallel resonant circuit is also known as

A. Current magnification factor

B. Voltage magnification factor

C. Load factor

D. Leakage factor

What is the correct answer?

4

Which of the following is a way of decreasing mutual inductance?

A. Moving the coils closer

B. Moving the coils apart

C. Decreasing the number of turns of either coil

D. Increasing the number of turns of either coil

What is the correct answer?

4

The Q-factor of a parallel resonant circuit is also known as

A. Voltage magnification factor

B. Current magnification factor

C. Gain magnification factor

D. Resonance magnification factor

What is the correct answer?

4

The average value of a triangular or sawtooth wave is _____ times its peak value.

A.

B.

What is the correct answer?

4

The resistance of an insulator ___ when its temperature is increased.

A. Decreases

B. Remains the same

C. Increases

D. Varies

What is the correct answer?

4

For a carbon composition resistora typical resistance values range from

A. 2.7 to 22 M

B. 1000 to 10000

C. 10 to 10 M

D. 2.7 to 2.7G

What is the correct answer?

4

An electric circuit contains

A. Passive elements

B. Active elements

C. Both active and passive elements

D. Reactive elements

What is the correct answer?

4

A real current source has

A. Infinite internal resistance

B. Zero internal resistance

C. Large internal resistance

D. Small internal resistance

What is the correct answer?

4

An inductive circuit of resistance 16.5 and inductance of 0.14 H takes a current of 25 ?. if the frequency is 50 Hza find the supply voltage.

A. 1501 V

B. 1174V

C. 1877V

D. 991 V

What is the correct answer?

4

Which of the following dielectric materials makes the lowest-capacitance capacitor?

A. Paper

B. Mica

C. Air

D. Electrolyte

What is the correct answer?

4

If a multiplate capacitor has 10 platesa each of area 10 cm2a then

A. 10 capacitors will be in parallel

B. 10 capacitors will be in series

C. 9 capacitors will be in parallel

D. 9 capacitors will be in series

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

Inductive reactance applies only to sine waves because it

A. Increases with lower frequencies

B. Increases with lower inductance

C. Depends on the factor 2

D. Decreases with higher frequencies

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

The presence of an electric current is made known by

A. Electric shock

B. Effects produced

C. Magnetic shock

D. Flashing

What is the correct answer?

4

Property of an electric circuit that dissipates electric energy

A. Reactance

B. Impedance

C. Resistance

D. Conductance

What is the correct answer?

4

The temperature-resistance coefficient of pure gold is

A.

B.

What is the correct answer?

4

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.

A. Phase

B. Frequency

C. Amplitude

D. Waveform

What is the correct answer?

4

What theorem is usually used in the analysis of transistor circuit?

A. Superposition theorem

B. Millman�s theorem

C. Thevenin�s theorem

D. Norton�s theorem

What is the correct answer?

4

An impedance given by 90 -45� is a/an ___ impedance.

A. Inductive

B. Conductive

C. Resistive

D. Capacitive

What is the correct answer?

4

Refers to the outward-curving distortion of the lines of force near the edges of two parallel metal plates that form a capacitor.

A. Skin effect

B. Night effect

C. Edge effect

D. Hall effect

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

In a parallel bank with unequal branch resistances

A. The highest R has the highest I

B. The lowest R has the highest V

C. The lowest R has the highest V

D. The highest R has the highest V

What is the correct answer?

4

What is the temperature coefficient of the resistance Eureka?

A. Infinity

B. Negative

C. Almost zero

D. Positive

What is the correct answer?

4

The charge in the capacitor is stored at the

A. Terminals

B. Plates

C. Dielectric

D. Air

What is the correct answer?

4

The voltage cannot be exactly in phase with the current in a circuit that contains

A. Only capacitance

B. Only resistance

C. Inductance and capacitance

D. Inductancea capacitance and resistance

What is the correct answer?

4

What dielectric is generally employed by a variable capacitor?

A. Mica

B. Air

C. Electrolyte

D. Ceramic