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Transformer equation: $\dfrac{V_s}{V_p} = \dfrac{N_s}{N_p}$. If $V_p$ doubles and turns ratio stays same, $V_s$ doubles. Power $P = V_p I_p = V_s I_s$. If $V_s$ doubles and power is constant, $I_s$ halves. However, if input power doubles (due to doubled $V_p$), $I_s$ doubles. Per answer key: secondary current doubles.

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Basic Mathematics QUESTION #2860

Question 166

The angles of a triangle are in ratio $2:3:4$. Find the largest angle.

60°
70°
80°✔️
90°

Correct Answer Logic:

Sum of angles in triangle $= 180°$. Parts $= 2+3+4 = 9$. Largest angle $= \dfrac{4}{9} \times 180° = 80°$.

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Biology QUESTION #4306

Question 167

In a pea plant, seed color is determined by two alleles: Y (Yellow, dominant) and y (green, recessive). Which parental cross would result in a 1:1 ratio of yellow to green seeds?

$Yy \times YY$
$Yy \times yy$✔️
$Yy \times Yy$
$YY \times yy$

Correct Answer Logic:

A test cross $Yy \times yy$ gives 50% $Yy$ (yellow) and 50% $yy$ (green), resulting in a $1:1$ ratio. This is the classic test cross used to determine genotype.

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City and Regional Planning QUESTION #5023

Question 168

Which concept addresses the relationship between transportation infrastructure and land development?

Land use-transport feedback cycle✔️
Zoning regulations only
Building codes
Environmental impact

Correct Answer Logic:

The land use-transport feedback cycle recognizes that transportation improvements increase accessibility, stimulating development, which generates more travel demand, requiring more infrastructure—a continuous cycle requiring integrated planning to avoid induced demand and sprawl.

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Math (Module-1) QUESTION #5468

Question 169

If $\frac{x}{8} = 5$, what is the value of $\frac{8}{x}$?

$\frac{1}{5}$✔️
$\frac{1}{8}$
5
40

Correct Answer Logic:

$\frac{x}{8} = 5 \implies x = 40$. Then $\frac{8}{x} = \frac{8}{40} = \frac{1}{5}$.

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Administration QUESTION #2939

Question 170

What is the fundamental purpose of a "Balance Sheet" in financial accounting?

Recording the total revenue and expenses over a specific period
Showing a company's financial position (assets/liabilities) at a specific point in time✔️
Tracking the daily cash inflows and outflows of the business
None of these

Correct Answer Logic:

A balance sheet provides a snapshot of what a company owns (assets) and owes (liabilities) on a particular date.

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Civil Procedure QUESTION #3686

Question 171

A plaintiff (State A) sues a defendant (State B) in federal court for $\text{\$100,000}$. During the jury trial, at the close of the plaintiff's evidence, the defendant moves for Judgment as a Matter of Law (JMOL), which is denied. The jury returns a verdict for the plaintiff. The defendant then files a Renewed JMOL 10 days after the entry of judgment. The plaintiff objects, noting the defendant never moved for JMOL after the defendant's own evidence was presented. Is the Renewed JMOL proper?

Yes, because a motion for JMOL was made at some point during the trial.✔️
Yes, because a Renewed JMOL is always permitted within 28 days of judgment.
No, because a Renewed JMOL can only be filed if the party moved for JMOL at the close of all evidence.
No, because the defendant must show 'plain error' to renew the motion.

Correct Answer Logic:

Rule 50(b) requires that a party must have moved for JMOL under Rule 50(a) at some time during the trial to 'renew' it post-verdict. The 2006 amendments removed the requirement that the motion be made at the close of all evidence; it must simply be made before the case is submitted to the jury.

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Others section QUESTION #46

Question 172 (Select all that apply)

Which AI technique enables systems to learn patterns from data and improve performance over time without explicit programming?

A. Computer Networking
B. Data Warehousing✔️
C. Machine Learning✔️
D. Cloud Computing

Correct Answer Logic:

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Urdu QUESTION #5101

Question 173

پل پڑنا محاورے کے معانی ہیں:

سر پر پاؤں رکھ کر بھاگنا
بحث مباحثہ کرنا
غور و فکر کرنا
حملہ کرنا یا ٹوٹ پڑنا✔️

Correct Answer Logic:

پل پڑنا محاورے کا مطلب ہے اچانک حملہ کرنا یا یکدم ٹوٹ پڑنا۔

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Mechanical Engineering QUESTION #2471

Question 174

In the Lewis beam strength equation for gear tooth bending, the allowable bending load $F_b$ is expressed as:

$F_b = \sigma_b B / P_d$
$F_b = \sigma_0 B p Y = \sigma_0 B \pi Y / P_d$✔️
$F_b = \sigma_0 B C / P_d^2$
$F_b = \pi \sigma_0 B d / N$

Correct Answer Logic:

The Lewis equation: $F_b = \sigma_0 B p Y$ where $\sigma_0$ is allowable bending stress, $B$ is face width, $p=\pi/P_d$ is circular pitch, and $Y$ is the Lewis form factor.

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Electrical Engineering QUESTION #2189

Question 175

A p-channel JFET has $I_{DSS} = -8\,\text{mA}$ and pinch-off voltage $V_P = +3\,\text{V}$. At $V_{GS} = 1.5\,\text{V}$ (saturation region), the drain current $I_D$ is:

$-2\,\text{mA}$✔️
$-4\,\text{mA}$
$-6\,\text{mA}$
$+2\,\text{mA}$

Correct Answer Logic:

$I_D = I_{DSS}\!\left(1-\frac{V_{GS}}{V_P}\right)^2 = -8\!\left(1-\frac{1.5}{3}\right)^2 = -8\times(0.5)^2 = -8\times0.25 = -2\,\text{mA}$. Negative sign confirms conventional current flows from source to drain in p-channel device.

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