What do you mean by voltage controlled device and current controlled device?

Answer: In voltage controlled device, output current depends on input voltage, eg FET In current controlled device , output current depends on input current.

Why is it called voltage controlled device?

Originally Answered: Why is a FET called a voltage-controlled device? The applied voltage between the Gate and the Source controls the drain current (Id). Which means that you use voltage to control the output current. Hence, FET is a voltage controlled device.

Did you find the SCR as a current controlled or voltage controlled device?

A silicon controlled rectifier (SCR) is a four-layer solid state current controlling device with 3 terminals. They have anode and cathode terminals like a conventional diode and a third control terminal, referred to as the Gate.

Why is transistor called current amplification device?

Transistor Amplifier A transistor acts as an amplifier by raising the strength of a weak signal. The DC bias voltage applied to the emitter base junction, makes it remain in forward biased condition. Thus a small input voltage results in a large output voltage, which shows that the transistor works as an amplifier.

Which is current controlled and voltage controlled device and give reason for same?

A BJT is a current controlled device because its output characteristics are determined by the input current. A FET is voltage controlled device because its output characteristics are determined by the Field which depends on Voltage applied.

What is the meaning of current controlled device?

Current controlled devices are those, whose output characteristic depends on input current.

Which transistor is a voltage controlled device?

There are two types of transistors, the FET and the BJT. The Field Effect Transistor is a voltage controlled device, because the drain current depends on the negetive voltage ( by convention) applied at the gate.

Is thyristor a controlled device?

Because thyristors can control a relatively large amount of power and voltage with a small device, they find wide application in control of electric power, ranging from light dimmers and electric motor speed control to high-voltage direct-current power transmission.