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WAEC 2025 MIDNIGHT QUESTION AND ANSWER  PAYMENTS!!!.

ALL SUBJECTS(COURSES)+PRACTICAL : ₦16,500


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Waec 2pm tomorrow

Store management obj & theory

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Waec Store management!!!

Typing and solving now

Anybody need it ???.

Check here by 12pm Sharp for question and answers.

WAEC 2025 MIDNIGHT QUESTION AND ANSWER  PAYMENTS!!!.

ALL SUBJECTS(COURSES)+PRACTICAL : ₦16,500


ALL SCIENCE SUBJECTS : ₦8,000


ALL ART SUBJECTS : ₦7,000


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MATHEMATICS TOPIC TO READ FOR TOMORROW'S EXAMS 28/2025

-Bar Chart
- Median
-Matrix
-Circle theorem
-Trigonometric ratio
-Ap and GP
-Combination & permutation
-Probability
-Mean and Range


PHYSICS:
-Gas law
-Resistance
-Capacitance
-Relative humidity
-Relative density
-Micrometer
-Measurement
-Angular velocity
-Frequency
-Force

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WAEC 2025 MIDNIGHT QUESTION AND ANSWER  PAYMENTS!!!.

ALL SUBJECTS(COURSES)+PRACTICAL : ₦16,500


ALL SCIENCE SUBJECTS : ₦8,000


ALL ART SUBJECTS : ₦7,000


ALL COMMERCIAL SUBJECTS : ₦ 7,000


PAY INTO THE ACCOUNT BELOW
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WAEC 2025 MIDNIGHT QUESTION AND ANSWER  PAYMENTS!!!.

ALL SUBJECTS(COURSES)+PRACTICAL : ₦16,500


ALL SCIENCE SUBJECTS : ₦8,000


ALL ART SUBJECTS : ₦7,000


ALL COMMERCIAL SUBJECTS : ₦ 7,000


PAY INTO THE ACCOUNT BELOW
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ANSWERS

1. (a) (i) Lenz’s Law:
Lenz's Law states that the direction of the induced current in a conductor is such that it opposes the change in magnetic flux that produced it.

(ii) Two advantages of electromagnets over permanent magnets:

1. Electromagnets can be turned on or off as needed.


2. Their magnetic strength can be varied by adjusting the electric current.



(b)
Given:

Number of turns, N = 10

Current, I = 3 A

Length of magnetic circuit, l = 25 cm = 0.25 m


Magnetic field intensity


--

2. (a)
Impedance of an a.c. circuit:
Impedance is the total opposition that a circuit offers to alternating current. It includes both resistance and reactance, and is measured in ohms (Ω).

(b) Sketch a sinusoidal waveform indicating:
(i) Amplitude — the peak value above or below zero.
(ii) Cycle — one complete wave from 0 to +peak to 0 to -peak and back to 0.

(c) Given: RMS voltage = 220 V
(i) Maximum voltage (Peak value):


(ii) Average value (for a sinusoidal waveform):



---

3. (a) Total power:

10 lamps × 60 W = 600 W

5 fans × 74 W = 370 W

5 ACs × 746 W = 3730 W

1 cooker = 2500 W
Total = 600 + 370 + 3730 + 2500 = 7200 W


(b) Energy consumed in 5 hours:
Energy = Power × Time = 7200 W × 5 h = 36,000 Wh = 36 kWh

(c) Using a 1.5 mm² cable for the electric cooker (2500 W):

This cable size is too small and may overheat, posing a fire hazard.

It can cause voltage drops and reduce the efficiency of the cooker.


4. (a) Sketch of a shunt motor:

Armature and field windings connected in parallel across the power supply.

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