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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- Active power
- Reactive power
- Apparent power
- None of these
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Explanation
Apparent power is the product of RMS voltage and RMS current, measured in volt-amperes (VA).
It represents the total power supplied in an AC circuit, including both real and reactive components.
- P = V × I
- P = V × I²
- P = V² × I
- None of these
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Explanation
Electrical power in a DC circuit is the product of voltage and current.
It represents the rate at which electrical energy is converted into other forms.
- Temperature of the inductor
- Product of the instantaneous current and rate of charge of current
- Square of the rate of charge of current
- None of these
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Explanation
Instantaneous power in an inductor is given by p = vi = Li di/dt, so it depends on current and its rate of change.
This shows energy is stored in (or released from) the magnetic field, not dissipated as heat.
- b = l + n - 4
- b = l + n - 2
- b = l + n - 1
- None of these
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Explanation
The fundamental theorem of network topology states that the number of branches equals the sum of independent loops and nodes minus one.
This relation is essential for applying Kirchhoff’s laws in electrical network analysis.
- 3.5 to 5
- 1.5 to 2
- 2.5 to 3
- None of above
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Explanation
Large induction motors are designed with low slip to achieve high efficiency and better speed regulation.
From no-load to full-load, their slip typically increases only slightly, remaining around 1.5–2%.
دو سالہ لڑکے کی والدہ شکایت کرتی ہیں کہ اس کے بچے کے پاس سانس لینے کے منتر ہیں۔ کس عمر میں سانس لینے والے منتر ختم ہوجاتے ہیں؟
- 6 years
- 4 years
- 5 years
- None of these
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Explanation
Breath-holding spells are common in toddlers and usually resolve spontaneously by around 6 years of age.
They are typically benign, though alarming to parents, and do not cause long-term harm.
مندرجہ ذیل میں سے کون آنکھ کا رنگ طے کرتا ہے؟
- Iris
- Cornea
- Conjunctiva
- Lens
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Explanation
Eye color is determined by the pigmentation of the iris, primarily the amount and type of melanin.
The iris regulates light entry but its pigment gives eyes their characteristic color.
لاسک _____ کے لئے استعمال ہوتا ہے؟
- Retinal detachment
- Glaucoma
- Myopia
- None of these
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Explanation
LASIK (Laser-Assisted In Situ Keratomileusis) reshapes the cornea to correct refractive errors like myopia.
It improves vision by allowing light to focus correctly on the retina without the need for glasses or contact lenses.
پٹیوٹری اڈینوما میں مندرجہ ذیل میں سے کون سی شرائط دیکھی جاتی ہیں؟
- Quadrantanopia pia
- Blindness
- Bitemporal hemianopia
- Homonymous hemianopia
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Explanation
Pituitary adenomas can compress the optic chiasm, leading to loss of vision in the outer (temporal) visual fields of both eyes.
This characteristic visual field defect helps in the diagnosis of sellar/parasellar masses.
ہورنر سنڈروم میں مندرجہ ذیل میں سے کون سا آنکھوں کی علامت موجود ہے؟
- Diplopia
- Meiosis
- Mydriasis
- Red eye
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Explanation
Horner syndrome results from disruption of sympathetic innervation to the eye, causing constriction of the pupil (miosis).
Other features may include ptosis (drooping eyelid) and anhidrosis (loss of sweating) on the affected side.
