Electronics

One of the following is NOT an advantage of the transistors over the valves.

• They are smaller in size

• There is need for heating element

• They have quick response to input signal

• They have longer life span

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NGSS.MS-ETS1-2

what type of device is this?

• it is a transistor
  

• it is a diode

• it is an amplifier

• it is a power supply

what is this?

• it is a transistor

• it is a diode

• it is a capacitor

• it is a resistance

Diagram below shows a p-n junction diode.

When the diode is in reverse biased, the depletion layer widens because

• the electrons and holes are pulled away from

  the p-n junction

• the electrons from the n-type are pulled across

  the p-n junction

• the negative charges flow from the negative

  terminal to the p-type semiconductor

• the positive charges flow from the positive

  terminal to the n-type semiconductor

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NGSS.HS-PS3-5

Diagram 24 shows four diodes which are connected to form a rectifier. Which wave pattern is produced on the C.R.O. screen?

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NGSS.HS-PS4-1

Identify the electronic symbol.

• Diode

• Photodiode

• Reflective diode

• Light Emitting Diode

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NGSS.HS-PS2-5

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Tags

NGSS.HS-PS2-5

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Tags

NGSS.HS-PS2-5

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Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3