Electromagnetic Theory Quiz | Electromagnetic Theory Objective Type Questions and Answers
Questions
21
An Electrolytic Capacitor Is Generally Made To Provide
Answer: Large Value Of Capacitance
22
If A Third Equal And Similar Charge Is Placed Between Two Equal And Similar Charges, Then This Third Charge Will
Answer: Remain In Stable Equilibrium
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23
A Positive And A Negative Charge Are Initially 50 Mm Apart. When They Are Moved Close Together So That They Are Now Only 10 Mm Apart, The Force Between Them Will Be
Answer: 25 Times Larger Than Before
24
To Prevent The Generation Of Static Charges On Rubber Or Flat Leather
Answer: Conductive Dressing Is Done
25
A Condenser Suitable For D.C. Only Is
Answer: Poled Aluminium Electrolytic Condenser
27
The Electric Field At A Point Situated At A Distance D From Straight Charged Conductor Is
Answer: Inversely Proportional To D
28
The Ability Of Charged Bodies To Exert Force On 6ne Another Is Attributed To The Existence Of
Answer: Electric Field
31
Two Plates Of A Parallel Plate Capacitor After Being Charged From A Constant Voltage Source Are Separated Apart By Means Of Insulated Handles, Then The
Answer: Voltage Across The Plates Decreases
32
Which Of The Following Statements Is Correct ?
Answer: Electrolytic Capacitor Must Be Con¬Nected In The Correct Polarity
33
For Which Of The Following Parameter Variation, The Capacitance Of The Capacitor Remains Unaffected ?
Answer: Thickness Of The Plates
34
Which Of The Following Capacitors Has Relatively Shorter Shelf Life ?
Answer: Electrolytic Capacitor
35
In A Capacitive Circuit
Answer: An Increase In Applied Voltage Makes A Capacitor Charge
37
A Capacitor In A Circuit Became Hot And Ultimately Exploded Due To Wrong Con¬Nections, Which Type Of Capacitor It Could Be ?
Answer: Electrolytic Capacitor
38
When 4 Volts E.M.F. Is Applied Across A 1 Farad Capacitor, It Will Store Energy Of
Answer: 8 Joules
39
For A Good 0.05 Uf Capacitor Ohmmeter Reading Should
Answer: Show Low Resistance Momentarily And Back Off To A Very High Resis¬Tance
40
While Testing A Capacitor With Ohm-Metre, If The Capacitor Shows Charging, But The Final Resistance Reading Is Appreciably Less Than Normal, It Can Be Concluded That The Capacitor Is
Answer: Leaky
