OTHER CHAPTERS COMBINED

Question 1

WHAT IS AC

Answer 1

CURRENT ALTERNATES PERIODICALLY, FORMING A SINUSOIDAL WAVEFORM

Question 2

WHAT IS DC

Answer 2

A CONSTANT FLOW OF CURRENT IS MAINTAINED, FORMING A STRAIGHT LINE

Question 3

APPLICATION OF AC

Answer 3

HOUSEHOLD APPLIANCES

POWER TRANSMISSION LINES

Question 4

APPLICATION OF DC

Answer 4

BATTERIES

ELECTRONIC DEVICES

TELECOMMUNICATIONS

Question 5

EXPLAIN THEVENIN’S THEOREM

Answer 5

ANY TWO-TERMINAL LINEAR BILATERAL DC NETWORK CAN BE REPLACED BY AN EQUIVALENT CIRCUIT CONSISTING OF A VOLTAGE SOURCE AND SERIES RESISTOR.

Question 6

FUNCTION OF CAPACITOR

Answer 6

STORES ENERGY IN AN ELECTRIC FIELD

Question 7

FUNCTION OF INDUCTOR

Answer 7

STORES ENERGY IN A MAGNETIC FIELD

Question 8

WHAT IS THE FORMULA USED TO CALCULATE CAPACITANCE?

Answer 8

Q=CV
Q- CHARGE (COULOMB)
C - CAPACITANCE (FARAD)
V- VOLTAGE (VOLT)

Question 9

FORMULA FOR INDUCTANCE

Answer 9

L=(VOLTAGE X TIME)/CURRENT

Question 10

FORMULA TO CALCULATE POWER STORED IN BOTH CAPACITOR AND INDUCTOR

Answer 10

P = VI = V C dv/dt
P = VI = Li di/dt

Question 11

FORMULA TO CALCULATE ENERGY STORED

Answer 11

E = 1/2CV^2
E = 1/2Li^2

Question 12

WHAT IS THE PROPERTY OF A BALANCED SYSTEM

Answer 12

1. WAVEFORM IS PERFECTLY SINUSOIDAL, MAGNITUDE VALUE IS THE SAME AND PHASE SHIFT IS 120DEGREES
2. CURRENT FLOWS THROUGH EACH PHASE IS THE SAME
3. NO CURRENT FLOW THROUGH NEUTRAL