Connect with us

2023 NABTEB Basic Electricity Questions and Answers Expo

Exam updates

2023 NABTEB Basic Electricity Questions and Answers Expo

2023 NABTEB Basic Electricity Questions and Answers

The National Business and Technical Examinations Board (NABTEB) Has Scheduled The 2023 Nabteb Basic Electricity Questions and Answers Paper To Kick of on Tuesday 27th June, 2023.

This brings the attention of candidates writing the exam in to searching for 2023 NABTEB Basic Electricity Questions and Answers, NABTEB Basic Electricity Expo 2023, and etc.

2023 NABTEB Basic Electricity Questions and Answers

In this section, you will read the steps and requirements needed for you to get Nabteb Basic Electricity 2023 Questions And Answers before exam.

NABTEB Basic Electricity 2023 Paper is Categorized in to 2 parts:

  • NABTEB Basic Electricity Theory 2023
  • NABTEB Basic Electricity Objective 2023

Here on zamgist, we have solved all the questions. That is 2023 NABTEB Basic Electricity Questions and Answers

CLICK HERE TO CHAT ME UP ON WHATSAPP & GET IT NOW

2023 NABTEB EXPO 2023 NABTEB Basic Electricity Questions and Answers
WhatsApp  N800 MTN CARD
Online Password  N800 MTN CARD
Direct SMS  N1200 MTN CARD
Delivery Time  4 hours or midnight before exam
Answer page https://examdubs.com.ng/
WhatsApp No.  08023429251
Source  ZAMGIST
Group  ZAMGIST MIRACLE CENTER
WhatsApp Group Link  Click Here to Join
Tags 2023 NABTEB Basic Electricity Questions and Answers

NABTEB Basic Electricity Expo 2023

==> Direct SMS: N1200 MTN CARD
Direct SMS MEANS all answers(theory & obj) will come direct to ur phone as sMs.

==> Online PIN: N800 MTN CARD
Online PIN MEANS The Pin to access our answers online via https://examdubs.com.ng/ will be sent to u at least 4 hours before the exam to access our answers.

==> WhatsApp: N800 MTN CARD
Whatsapp MEANS The answer will be sent to you on WhatsApp after we confirm your subscription. Add Us In WhatsApp With 08023429251.


Send The Following details:-

(i) MTN CARD Pin(s)
(ii) Your Name
(iii) Subject
(iv) Phone number
===> 08023429251 via sms

RELATED POST: 

2023 NABTEB Office Practice Questions and Answers Expo

2023 NABTEB CRS Questions and Answers Expo

2023 NABTEB Islamic Studies Questions and Answers Expo

2023 NABTEB Financial Accounting Questions and Answers Expo

NOTE:- All WhatsApp Messages Sent To The Above Number Are Attended To. Always Send Us WhatsApp Message Of Your Complaint, Your Message(s) Will Get To Us And We Will Reply immediately.

Nabteb Basic Electricity Answer 2023

NUMBER ONE

(1ai)
A capacitor is a device that stores electrical energy in an electric field. It consists of two conductive plates separated by an insulating material called a dielectric.

(1aii)
An insulator is a material that does not conduct electric current easily meaning that it has high electrical resistance.

(1aiii)
A conductor is a material that allows electric current to flow through it easily meaning that it has low electrical resistance.

(1aiv)
Resistance is the opposition to the flow of electric current in a conductor. It is measured in ohms (Ω).

(1av)
Potential difference also known as voltage is the energy per unit charge required to move a charge from one point to another in an electric field.

(1bi)
Blue-grey-orange-silver resistor has a value of 68 kΩ ± 10%
Maximum value = (68 kΩ + 10% of 68 kΩ) = 74.8 kΩ
Minimum value = (68 kΩ – 10% of 68 kΩ) = 61.2 kΩ

(1bii)
Red-yellow-brown-gold resistor has a value of 240 Ω ± 5%
Maximum value = (240 Ω + 5% of 240 Ω) = 252 Ω
Minimum value = (240 Ω – 5% of 240 Ω) = 228 Ω

(1biii)
Brown-black-red-no band resistor has a value of 1 kΩ ± 2%
Maximum value = (1 kΩ + 2% of 1 kΩ) = 1.02 kΩ
Minimum value = (1 kΩ – 2% of 1 kΩ) = 0.98 kΩ

(1c)
Total emf = 1.5V + 2.0V + 3.5V = 7.0V.
Therefore the total emf of the three cells is *7.0V* .
========================================
BASIC ELECTRICITY

NUMBER TWO

(2a)
Ohm’s Law states that the current passing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them.

(2bi)
When the resistors are connected in parallel the equivalent resistance (Req) is =
1/Req = 1/2Ω + 1/3Ω + 1/4Ω + 1/6Ω
Req = 1.2Ω
Using Ohm’s Law =
I = V/Req = 12/1.2 = 10 A

Therefore the resultant current when the resistors are connected in parallel is 10 A.

(2bii)
When the resistors are connected in series the equivalent resistance (Req) is =
Req = 2Ω + 3Ω + 4Ω + 6Ω
Req = 15Ω
Using Ohm’s Law =
I = V/Req = 12/15 = 0.8 A
Therefore the resultant current when the resistors are connected in series is *0.8 A*

(2biii)
The current in the 4Ω resistor can be calculated by using Ohm’s Law in both cases =

(i) In parallel =
I = V/R = 12/4 = 3 A
Therefore the current in the 4Ω resistor when the resistors are connected in parallel is *3 A.*

(ii) In series:
I = V/R = 12/15 x 4 = 3.2 A
Therefore the current in the 4Ω resistor when the resistors are connected in series is *3.2 A.*
========================================
*NABTEB BASIC ELECTRICITY*

*NUMBER FOUR*

(4ai)
(PICK ANY FOUR)
(i) Constant current charging
(ii) Constant voltage charging
(iii) Trickle charging
(iv) Fast charging
(v) Inductive charging
(vi) Solar charging.

(4aii)
(PICK ANY TWO)
(i) Ensure correct polarity while installing the cells in a device.
(ii) Keep the cells away from fire or any source of heat.
(iii) Do not mix different types of cells and batteries.
(iv) Use chargers designed for the specific type of cell or battery being charged.
(v) Avoid overcharging as it can cause the cell to explode or catch fire.
(vi) Store the cells in a cool and dry place.

(4bi)
The average value is calculated as:
= (2/π) × (peak value of the voltage)
= (2/π) × (200V)
= 127.32V
Therefore the average value of the alternating voltage is *127.32V*

(4bii)
The RMS value is calculated as:
RMS value = (peak value of the voltage) / √2
= 200V / √2
= 141.42V
Therefore the RMS value of the alternating voltage is *141.42V.*
========================================
*NABTEB BASIC ELECTRICITY*

*NUMBER SIX*

(6a)
(PICK ANY THREE)
(i) eating effect: When current is passed through a resistor it produces heat. Example: An electric stove.
(ii) Magnetic effect: Electric current produces a magnetic field around it. Example: An electromagnet.
(iii) Chemical effect: Electric current can cause chemical reactions. Example: Electrolysis of water.
(iv) Illumination effect: Electric current produces light. Example: Incandescent light bulbs.
(v) Mechanical effect: Electric current produces mechanical motion. Example: Electric motors.
(vi) Shock effect: Electric current can cause shock or electrocution. Example: Touching a live wire.

(6b)
(PICK ANY SIX)
(i) Copper
(ii) Silver
(iii) Aluminum
(iv) Gold
(v) Iron
(vi) Brass
(vii) Bronze
(viii) Nickel

(6c)
(PICK ANY SIX)
(i) Rubber
(ii) Plastic
(iii) Glass
(iv) Air
(v) Porcelain
(vi) Dry wood
(vii) Bakelite
(viii) Ceramic

(6d)
1/R = 1/6 + 1/9 + 1/12 = 1/2
R = 2 ohms
I = V/R = 50/2 = *25 amperes*
Therefore the current in the circuit is *25 amperes.*

Continue Reading
You may also like...
Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

More in Exam updates

To Top
× Chat Zamgist on WhatsApp