Answer / hunny soni

Passive device don't have its own internal energy. To
operate these device we require external energy. Like
Resistor capacitor and inductor.

Active device don't need external energy. It has its own
internal energy. Like battery, and transistor etc.

Answer / kunal s. thaker

ACTIVE DEVICE :- The device which can deliver power to other
element.

PASSIVE ELEMENT :- The device which is not able to deliver
power. But they get the power from ACTIVE DEVICES.

Answer / ankur saxena

active devices are the devices in which we can control
current or flow of electron electrically i.e. by use of
current or voltage.
e.g. transistors,triacs etc
in passive devices we cant control it
e.g. resistor,inductor,capacitor.

Answer / tariq

In Electronics, Active devices are those devices which has
some gain e.g. Amplifiers. The passive devices have no gain

Answer / mohit vashishtha

An active device is any type of circuit component with the ability to electrically control electron flow (electricity controlling electricity). In order for a circuit to be properly called electronic, it must contain at least one active device. Active devices include, but are not limited to, vacuum tubes, transistors, silicon-controlled rectifiers (SCRs), and TRIACs.

Components incapable of controlling current by means of another electrical signal are called passive devices. Resistors, capacitors, inductors, transformers, and even diodes are all considered passive devices.

Answer / sruthi

diode is not a passive device bcz due to some charge
carriers containing it(in pn junction).....some what it can
generate energy not as like that active device............

Answer / barsha

active divices- require some extrenal energy to be ready
for an operation. these are the devices which increases the
amplification.
passive devices- this devices does not require a source of
energy for operation. it only changes the phase and
decrease the amplitude of a sine wave.

Answer / ashu

active devices does not require any power supply.

Answer / jigs

Active device which needs power to operate, passive device
which doesn't power.

why use -48 volt DC power in telecom?

5 Answers  

Definition of power electronics?

0 Answers  

is embeded technology is necessary for every electronics engineer?

0 Answers  

What is the use of induction motor?

3 Answers   Micromax,

What is cdma, tdma, fdma?

0 Answers  

Alok and Bhanu play the following min-max game. Given the expression N = 9 + X + Y - Z Where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be 27 0.0 20 18

3 Answers   TCS,

WHAT IS THE DIFFERENCE B/W VERILOG AND VHDL

2 Answers   Infosys, TCS,

what are the topic have in company

1 Answers   Vernalis Systems,

WAT EXACTLY DOES IT DO

0 Answers  

why the circuit turn off time should be greater than thyristor turn off time?

0 Answers  

6. When Abis link is down, name the alarm that is generated at BSC

1 Answers  

how apb protocol has a minimum power consumption?

0 Answers