In depletion mode, source and drain are connected by . . . . . . . . A. Insulating channel B. Conducting channel C. Vdd D. Vss

Insulating channel
Conducting channel
Vdd
Vss

The correct answer is: A. Insulating channel

In depletion mode, the channel between the source and drain is depleted of charge carriers, which makes it an insulator. This means that there is a high resistance between the source and drain, and no current will flow unless a voltage is applied.

The other options are incorrect because:

  • Option B: A conducting channel would allow current to flow between the source and drain, even without a voltage applied.
  • Option C: Vdd is the positive supply voltage, and Vss is the negative supply voltage. Neither of these voltages would cause current to flow between the source and drain in depletion mode.
  • Option D: This is not a valid option.