Questions – Answers
Electrical and Electronics Engineering Interview Questions and Answers
-
Why Power Factor Decreases When Inductance or Inductive Reactance Increases?
In Inductive Circuit, Why the Power Factor (Cos θ) Decreases, When Inductance (L) or Inductive reactance (XL) Increases? Next question from electrical and electronics engineering interviews question and answers series. Explain…
Read More » -
Why Current Increases When Capacitance Increases or Capacitive Reactance Decreases?
In Capacitive Circuit, Why the Circuit Current (I) Increases, When Capacitance (C) Increases or Inductive Reactance (XC) Decreases? Next question from electrical and electronics engineering interviews question and answers series. Explain…
Read More » -
Why Current Decreases When Inductance or Inductive Reactance Increases?
In Inductive Circuit, Why the Circuit Current (I) Decreases, When Inductance (L) or Inductive reactance (XL) Increases? Another question from electrical and electronics engineering interviews question and answers series. Explain the…
Read More » -
According to Ohm’s Law, I ∝ V, But I ∝ 1/V in Power Equation. Explain?
In I = V ÷ R, Current is Directly Proportional to the Voltage, But Current is Inversely Proportional to the Voltage in P = V × I? This is another…
Read More » -
Why Power in Pure Inductive and Pure Capacitive Circuit is Zero?
Why Power is Zero (0) in Pure Inductive, Pure Capacitive or a Circuit in which Current and Voltage are 90° Out of Phase? These types of questions are asked in…
Read More » -
Why Flux in Primary and Secondary Winding is Always Equal?
Why Flux in the Primary and Secondary Winding of the Transformer is Same? One of our followers asked “In a transformer, Which one is greater? primary flux or secondary flux?…
Read More » -
Can We Replace a 110/220 Turns Transformer with 10/20 Turns?
1:2 Turn Ratio for 110:220? The Turn Ratio is Same, Shall its Rating be Same? A step up transformer which has 110/220 turns. Can we replace it with 10/20 turns…
Read More » -
Is it Possible to Operate a 50Hz Transformer on 5Hz or 500Hz Frequency?
What Happens if a 50Hz Transformer is Connected to 5Hz or 500Hz Supply Frequency? What would happen if a power transformer designed for operation on 50Hz frequency were connected to…
Read More » -
Which Transformer is More Efficient When Operates on 50Hz or 60Hz?
A 50/60 Hz Transformer – Which One is More Efficient and Why? A transformer is designed to be operated on both 50Hz and 60Hz frequency. For the Same rating, which…
Read More » -
Can We Operate a 60Hz Transformer on 50Hz Supply Source and Vice Versa?
What Happens When a 50Hz Transformer Operates on 60Hz and Vice Versa? Let’s suppose we have a transformer with same rating and parameters when operated at 60Hz and 50Hz supply…
Read More »
