Logout Open In App
Open In App
Warning: foreach() argument must be of type array|object, bool given in /var/www/html/web/app/themes/studypress-core-theme/template-parts/header/mobile-offcanvas.php on line 20

Chapter 14: Problem 2076

A choke coil has (a) High inductance and low resistance (b) Low inductance and high resistance (c) High inductance and high resistance (d) Low inductance and low resistance

Short Answer

Expert verified
The correct answer is (a) High inductance and low resistance, as a choke coil needs high inductance to block high-frequency signals and low resistance to reduce energy losses and allow the intended AC or DC current to pass through efficiently.

Step by step solution

01

Recall the Characteristics of a Choke Coil

A choke coil is an inductor used in electrical circuits to prevent or 'choke' the passing of high-frequency alternating current (AC) while allowing the low-frequency AC or direct current (DC) to pass through. It has a high inductance which enables it to store energy and thus effectively block the high-frequency signals. The purpose of a choke coil is to filter out the unwanted frequencies and reduce electrical noise. Choke coils are used in power supplies, audio systems, and other electronic devices.
02

Compare the Options Given

Now let's evaluate each option in the context of the characteristics of a choke coil: (a) High inductance and low resistance: As mentioned earlier, choke coils have high inductance to block high-frequency signals. Low resistance is a desirable property as it reduces energy losses and allows the intended AC or DC current to pass through more efficiently. (b) Low inductance and high resistance: This does not match the purpose of a choke coil, which is to have high inductance for blocking high-frequency signals. (c) High inductance and high resistance: Despite having high inductance, the presence of high resistance negates the effect of allowing the desired current to pass through efficiently. (d) Low inductance and low resistance: Low inductance will not serve the purpose of blocking high-frequency signals in a choke coil.
03

Pick the Correct Answer

Based on the characteristics of a choke coil and comparing it with the given options, we can determine that the correct answer is: (a) High inductance and low resistance

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

The coil of a choke in a circuit (a) Increase the current (b) Decrease the current (c) Does not change the current (d) Has high resistance to a circuit

The power factor of an ac circuit having resistance \((\mathrm{R})\) and inductance (L) connected in series and an angular velocity w is, (a) \((\mathrm{R} / \mathrm{cL})\) (b) $\left[\mathrm{R} /\left\\{\mathrm{R}^{2}+\omega^{2} \mathrm{~L}^{2}\right\\}^{(1 / 2)}\right]$ (c) \((\omega L / R)\) (d) $\left[\mathrm{R} /\left\\{\mathrm{R}^{2}-\omega^{2} \mathrm{~L}^{2}\right\\}^{(1 / 2)}\right]$

An inductor-resistor-battery circuit is switched on at \(\mathrm{t}=0 .\) If the emf of battery is \(\varepsilon\) find the charge passes through the battery in one time constant \(\tau\). (a) \(\left[\left\\{i_{\max } \tau\right\\} / \mathrm{e}\right]\) (b) \((\tau-1) \mathrm{e} \mathrm{i}_{\max }\) (c) \(\left[\left\\{i_{\max }\right\\} / \mathrm{e}\right]\) (d) \(\tau \mathrm{i}_{\max }\)

In circular coil. when no. of turns is doubled \& resistance becomes half of the initial then inductance becomes ...... (a) 4 times (b) 2 times (c) 8 times (d) No change

In a region of uniform magnetic induction \(\mathrm{B}=10^{-2}\) tesla, a circular coil of radius \(30 \mathrm{~cm}\) and resistance \(\pi^{2}\) ohm is rotated about an axis which is perpendicular to the direction of \(\mathrm{B}\) and which forms a diameter of the coil. If the coil rotates at $200 \mathrm{rpm}$ the amplitude of the alternating current induced in the coil is, (a) \(4 \pi^{2} \mathrm{~mA}\) (b) \(30 \mathrm{~mA}\) (c) \(6 \mathrm{~mA}\) (d) \(200 \mathrm{~mA}\)
See all solutions

Recommended explanations on English Textbooks

Multiple Choice Questions

Read Explanation

Textual Analysis

Read Explanation

Syntax

Read Explanation

Discourse

Read Explanation

Free Response Essay

Read Explanation

Lexis and Semantics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free