In a thyristor Latching current is ________ than Holding current a) Equal b) Less c) Greater d) None

In a thyristor Latching current is ________ than Holding current
a) Equal
b) Less
c) Greater
d) None
by

1 Answer

Answer :

Ans: Greater
by

Related questions

In a thyristor Latching current is than holding current: -

Description : In a thyristor Latching current is than holding current: - a) equal b) less c) greater d) none of the above

Last Answer : In a thyristor Latching current is than holding current: - greater

The typical ratio of latching current to holding current in a 20A thyristor is :

Description : The typical ratio of latching current to holding current in a 20A thyristor is : (A) 5.0 (B) 2.0 (C) 1.0 (D) 0.5

Last Answer : The typical ratio of latching current to holding current in a 20 A thyristor is  2.0

why thyristor is called latching device?

Last Answer : Thyristor can be turn on by positive gate pulse and the current will continue to flow through the device even when the gate voltage is low hence thyristor is called latching device.

What is holding current and latching current in SCR ?

Description : What is holding current and latching current in SCR? Draw the gate characteristics of an SCR and explain the characteristics. What are the different signals which can be used for turning on SCR by gate control? compare them.

Last Answer : (i) Holding Current: Holding current is defined as the minimum anode current required to maintain conducting SCR in the on-state.  (ii) Latching Current: Latching current is defined as the ... the on-state immediately after the SCR has been turned on and the gate signal has been removed.

In p-n-p transistor, collector current is (a) Equal to emitter current (b) slightly less than emitter current (c) greater than emitter current (d) any of above

Description : In p-n-p transistor, collector current is (a) Equal to emitter current (b) slightly less than emitter current (c) greater than emitter current (d) any of above

Last Answer : (c) greater than emitter current

What is a thyristor? What is an SCR?

Description : What is a thyristor? What is an SCR?

Last Answer : A thyristor is a solid-state semiconductor device with four layers of alternating N and P-type material. They act as bi stable switches, conducting when their gate receives a current trigger, and continue ... ) is a four-layer solid state device that controls current. It is a type of thyristor.

In a thyristor, holding current is

Description : In a thyristor, holding current is   (a) More than latching current IL (b) Less than IL (c) Equal to IL (d) Very small

Last Answer : In a thyristor, holding current is Less than IL

In thyristor. holding current is

Description : In thyristor. holding current is (A) More than the latching current (B) Less than the latching current (C) Equal to latching current (D) None of the above

Last Answer : In thyristor. holding current is less than the latching current

Under ideal conditions, the collector current is (a) Equal to base current (b) Nearly equal to emitter current (c) Less than base current (d) always zero

Description : Under ideal conditions, the collector current is (a) Equal to base current (b) Nearly equal to emitter current (c) Less than base current (d) always zero

Last Answer : (b) Nearly equal to emitter current

Forward current through a semi-conductor diode circuit is due to ________ (a) Minority carriers (b) majority carriers (c) holes (d) electrons

Description : Forward current through a semi-conductor diode circuit is due to ________ (a) Minority carriers (b) majority carriers (c) holes (d) electrons

Last Answer : (b) majority carriers

The starting current of an electric motor is ________ the current flowing after the motor reaches its normal running speed. (a) nearly equal to (b) exactly equal to (c) less than (d) much greater than

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Last Answer : Ans:(d)

Define latching current.

Description : Define latching current.

Last Answer : Gate signal is to be applied to the thyristor to trigger the thyristor ON in safe mode. When the thyristor starts conducting the forward current above the minimum value, called Latching current, the gate ... which is applied to trigger the device in no longer require to keep the scr in ON position.

What is latching current in SCR?

Description : What is latching current in SCR?

Last Answer : It is the minimum current required to latch(turn on) the SCR from forward blocking state to forward conduction state.

Paramagnetic materials have relative permeability (a) slightly less than unity (b) equal to unity (c) slightly more than unity (d) equal to that ferromagnetic mate rials

Description : Paramagnetic materials have relative permeability (a) slightly less than unity (b) equal to unity (c) slightly more than unity (d) equal to that ferromagnetic mate rials

Last Answer : (c) slightly more than unity

Electron can exist in the atom but outside the nucleus because a) speed of electron is equal to the speed of light b) speed of electron is more than speed of light c) speed of electron is less than speed of light d) None of these

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Last Answer : (a) Larger than unity

The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is (a) proportional to 7 (b) proportional to X (c) proportional to distance between the conductors (d) inversely proportional to I

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Last Answer : (b) proportional to X

A galvanometer has resistance of 120 Ω. In order to pass 5% of the main current in it, the value of shunt resistance Rs must be equal to a) 6.3 Ω b) 6 Ω c) 2 Ω d) 2.3 Ω

Description : A galvanometer has resistance of 120 Ω. In order to pass 5% of the main current in it, the value of shunt resistance Rs must be equal to a) 6.3 Ω b) 6 Ω c) 2 Ω d) 2.3 Ω

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In the transistor schematic symbol, the arrow ________ (a) located on emitter (b) located on base (c) located on collector (d) points from north to south

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Last Answer : a) located on emitter

The electronic circuits which implement the various logic operations are called ________ (a) Logic gates (b) Boolean algebra (c) amplifier gain (d) logic functions

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Last Answer : a) Logic gates

In n-p-n transistor, p works as ________ (a) Collector (b) emitter (c) base (d) any of above

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A galvanometer in which the coil quickly comes to rest is called a ________ galvanometer a) Ballistic b) Mirror c) Astatic d) Dead beat

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Desirable resistance of a ________ is achieved by connecting a high resistance Rh in series with a galvanometer a) Ammeter b) Ohmmeter c) LED d) Voltmeter

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A rod at rest appears to an observer just a mere point when he moves across it as speed, a) Equal to the speed of light b) Double the speed of light c) Three-fourth the speed of light d) None of the above

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