At cut off, the Q point is at None of these lower end of the load line infinity middle of the load line upper end of the load line TRUE ANSWER : ? YOUR ANSWER : ?
Doubling the operating frequency of a capacitive circuit: doubles the amount of a capacitive reactance cuts the capacitive reactance in half multiplies the capacitive reactance by 6.28 has no effect on the capacitive reactance None of these TRUE ANSWER : ? YOUR ANSWER : ?
How much current flows through a 0.02 micro F capacitor that is operating from a 12-V ac, 100-Hz source? 0.995 mA 157 raA 0.151 mA None of these 2.02 A TRUE ANSWER : ? YOUR ANSWER : ?
Which one of the following statements is true for the currents in a series RC circuit? The total current is equal to the sum of the currents for the resistance and capacitance The total current is greater than the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit None of these The total current is less than the sum of the currents for the resistance and capacitance TRUE ANSWER : ? YOUR ANSWER : ?
Doubling the operating frequency of a purely inductive circuit: has no effect on the current through the inductors doubles the amount of current through the inductors cuts the current through the inductors one-half None of these increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit TRUE ANSWER : ? YOUR ANSWER : ?
The transistor has a current gain of 175. If the base current is 0.1 mA, what is the collector current? 1750 mA 1.75 mA 175 mA None of these 17.5 mA TRUE ANSWER : ? YOUR ANSWER : ?
The barrier potential accross each depletion layer is None of these 20 V 0.8 V 0.7 V TRUE ANSWER : ? YOUR ANSWER : ?
What is one important thing transistors do? None of these Rectify line voltage Emit light Regulate voltage Amplify weak signals TRUE ANSWER : ? YOUR ANSWER : ?
Which one of the following statements applies to common, non-rechargeable flashlight batteries? Common flashlight batteries are secondary dry-cell batteries Common flashlight batteries are secondary wet-cell batteries Common flashlight batteries are primary dry-cell batteries None of these Common flashlight batteries are primary wet-cell batteries TRUE ANSWER : ? YOUR ANSWER : ?
Positive ions are atoms that have None of these Lost an electron Gained a proton Lost a proton Gained an electron TRUE ANSWER : ? YOUR ANSWER : ?