COA relay, buffer and tristate buff invertor tristate invertors

In relay like switches the magnetic field developed by ______

• Input voltage

• Output voltage

• Coil

• None

In buffer, when Vi = low, then Vo=______?

• Low

• High

• None

In tri state buffer G is an ______

• Input

• Coil

• Additional input

• Output

Invertor is also called as ______

• AND circuit

• OR circuit

• NOT circuit

• None

A small ______ signifies the inversion in the invertors.

• Circle

• Triangle

• Square

In a tri state invertors, when we get output Vo = High?

• When Vi= L and G = L

• When Vi = L and G = H

In the invertor circuit, when input to circuit Vi = low then the switch set to ________

• Low

• Up