Question

Two coils having equal resistance but different inductances are connected in series. The time constant of the series combination is

a.

average of the time constants of individual coils

b.

sum of the time constants of the individual coils

c.

geometric mean of the time constants of individual coils

d.

product of the time constants of the individual coils

Answer: (a).average of the time constants of individual coils

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. Two coils having equal resistance but different inductances are connected in series. The time constant of the series combination is

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. Kirchoff's laws are applicable to

Q. In solid dielectrics the rate of deterioration doubles for every 10-12°C rise in temperature.

Q. An RLC series circuit is excited by a step voltage E. The circuit current at t = 0 is

Q. Consider the following: Energy storage capability of basic passive elements is due to the fact that

1. resistance dissipates energy
2. capacitance stores energy
3. inductance dissipates energy

Which of the above is/are correct?

Q. In an ac circuit that delivers constant power at varying p.f., the current is

Q. The parameter A of a two port network is equal to

Q. The relation AD - BC = 1 where A, B, C, D are transmission parameters of a network is valid for

Q. A network N is dual of network N if

Q. A dielectric should have poor heat conductivity.

Q. The ability of a radio receiver to discriminate between different input signals and to accept only one definite signal is called its

Q. Assertion (A): A graph can have many trees.

Reason (R): The number of tree branches is equal to number of nodes.

Q. Electric shock is

Q. The first critical frequency nearest the origin of the complex frequency plane for an RL driving point impedance will be

Q. For a reactance function H(s)

Q. A sinusoidal current having peak value of 7.07 A is superimposed on dc of 5A. If a hot-wire ammeter is used to measure the combined current in the circuit, it will indicate __________ ampere.

Q. An ideal current source has

Q. The series element in band pass filter is

Q. For an RC admittance function

Q. Norton's equivalent circuit

Q. The poles and zeros of a positive real functions are real or occur in conjugate pair.

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!