ELECTRONICS ENGINEERING EASY QUESTION

1. In a TTL Logic, what do you call the push-pull circuit highlighted as shown?

ANSWER: TOTEM POLE CIRCUIT

2. Observing the circuit below, find the number of independent loop equations possible n the circuit.

ANSWER: 5

3. The capacitance in each side is 1F, find the equivalent capacitance of the circuit

ANSWER: 6/5 F

4. What type of feedback is applied to an op amp when an external component is connected between the output terminal and the inverting input? What type of feedback is applied to an op amp when an external component is connected between the output terminal and the inverting input?

ANSWER: NEGATIVE FEEDBACK

5. It is an equation describing the magnetic field generated by an electric current. It relates the magnetic field to the magnitude, direction, length, and proximity of the electric current.

ANSWER: BIOT SAVART LAW

6. Given a fixed biased configuration having a VCC equal to +12 with an RB and RC of 240kΩ and 2.2kΩ, respectively, find IBQ.

ANSWER: 47.08uA

7. These are materials that exhibit parallel alignment of moments resulting in large net magnetization even in the absence of a magnetic field.

ANSWER: FERROMAGNETIC MATERIAL

8. A type of microphone that uses the principle of a capacitor as a means of transduction. It uses a polarizing voltage of between 9 and 48 V of DC supply applied to its diaphragm by an external power supply.

ANSWER: CONDENSER

9. What is the minimum output voltage for high output or logic 1 output TTL?

ANSWER: 2.4 V

10. The difference in dB between the loudest level of sound and the softest passage of sound is known as

ANSWER: DYNAMIC RANGE

11. A classification of ICs with complexities of 12 to 99 equivalent gates on a chip is known as ___

ANSWER: MSI OR MEDIUM SCALE INTEGRATION

12. What is the average transformer utilization factor (TUF) of bridge rectifier?

ANSWER: 0.812

13. Atom with three valence electrons added to a semiconductor to reduce the number of electrons in it, thus creating holes in the semiconductor’s valence band.

ANSWER: ACCEPTOR ATOM

14. A moving-coil instrument gives full-scale deflection with 15 mA and has a resistance of 5 Ω. Calculate the resistance required in series to enable it to read up to 10 V.

ANSWER: 662 ohms 15. The first byte in a machine level instruction is called

____.

ANSWER: OP-CODE OR OPERATIONAL CODE

16. What transformer turns ratio is required to match a 16 ohms speaker load so that the effective load resistance seen at the primary is 10 k ohms? ANSWER: 25:1

17. What is the maximum efficiency of a class B amplifier?

ANSWER: 78.54%