Question

Assertion (A): In an RC coupled amplifier the junction capacitances can be neglected at low frequencies but not at high frequencies

Reason (R): Capacitive reactance is inversely proportional to frequency.

a.

Both A and R are correct and R is correct explanation for A

b.

Both A and R are correct but R is not correct explanation for A

c.

A is correct R is wrong

d.

A is wrong R is correct

Answer: (a).Both A and R are correct and R is correct explanation for A

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. Assertion (A): In an RC coupled amplifier the junction capacitances can be neglected at low frequencies but not at high frequencies Reason (R): Capacitive reactance is...

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. In a full wave rectifier circuit using centre tapped transformer, the peak voltage across half of the secondary winding is 30 V. Then PIV is

Q. A class C amplifier has input frequency of 200 kHz. If width of collector pulses is 0.1 μs, duty cycle is

Q. Output of a phase splitter is

Q. In a transistor the minimum and maximum values of βdc are 100 and 121. The proper value of βdc to be used to locate Q point is

Q. The input to an op-amp integrating amplifier is a constant voltage. The output will be

Q. FET amplifier is more difficult to analyse than BJT amplifier.

Q. If an amplifier with gain of - 100 and feedback of β = - 0.1 has a gain change of 20% due to temperature the change in gain of the feedback amplifier will be

Q. A voltage gain of a CE amplifier connected in collector to base configuration is 50. Collector to base resistor RF = 1 kΩ, RC = 4Ω, the O/P resistance R0 =?

Q. A voltage multiplier circuit, using diodes and capacitors is suitable for

Q. In a CE amplifier the ac emitter resistance

Q. The output impedance of an ideal op-amp is

Q. A virtual ground is a ground for

Q. As compared to a full wave diode rectifier circuit using centre tapped transformer, the bridge diode rectifier circuit has the main advantage of

Q. To bypass a 100 ohm emitter resistor at

Q. In a CE amplifier the dc load line is the same as ac load line when

Q. If the output current wave shape of class C circuit has a period of 1 μs and a pulse width of 0.006 μs, the duty cycle is

Q. Which configuration is suitable for impedance matching?

Q. A BJT is said to be operating in saturation region if

Q. Which component is allowed to pass through it by a choke filter?

Q. In an amplifier the stray capacitances assume impedance at low frequencies

Recommended Subjects

Are you eager to expand your knowledge beyond Electronics and Communication Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!