Electronics

In an n type semiconductor the majority carriers are:

• 1 Neutrons
• 2 Holes
• 3 Electrons
• 4 Protons

A p n junction diode conducts when it is:

• 1 Heated only
• 2 Reverse biased
• 3 Forward biased
• 4 Never

A transistor can act as an:

• 1 Only a resistor
• 2 Amplifier or a switch
• 3 Only a battery
• 4 Only a capacitor

An operational amplifier has an ideal input resistance of:

• 1 Zero
• 2 1 ohm
• 3 100 ohm
• 4 Infinity

A NAND gate output is 0 only when:

• 1 Both inputs are 1
• 2 Both inputs are 0
• 3 Inputs differ
• 4 Any input is 1

In a transistor, the base is:

• 1 Thick and heavily doped
• 2 An insulator
• 3 Thin and lightly doped
• 4 A metal

A Zener diode is used as a:

• 1 Inductor
• 2 Voltage regulator
• 3 Capacitor
• 4 Rectifier only

A full wave rectifier uses:

• 1 Capacitors only
• 2 Two or four diodes
• 3 Inductors only
• 4 One transistor