A generator at a utility company produces 100 | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) For an ideal transformer,the power input equals the power output,assuming no energy losses.The relationship is given by $V_p I_p = V_s I_s$,where

Vedclass · Accepted Answer

$1.67$

Vedclass · Answer

(C) For an ideal transformer,the power input equals the power output,assuming no energy losses.The relationship is given by $V_p I_p = V_s I_s$,where $V_p$ and $I_p$ are the primary voltage and current,and $V_s$ and $I_s$ are the secondary voltage and current.Given:Primary voltage $V_p = 4000 \, V$Primary current $I_p = 100 \, A$Secondary voltage $V_s = 240,000 \, V$Substituting the values into the equation:$4000 	imes 100 = 240,000 	imes I_s$$400,000 = 240,000 	imes I_s$$I_s = \frac{400,000}{240,000}$$I_s = \frac{40}{24} = \frac{5}{3} \approx 1.67 \, A$.

$A$ generator at a utility company produces $100 \, A$ of current at $4000 \, V$. The voltage is stepped up to $240,000 \, V$ by a transformer before it is sent on a high voltage transmission line. The current in the transmission line is ....... $A$.

Similar Questions

The number of turns in the primary coil of a transformer is $200$ and the number of turns in the secondary coil is $10$. If $240 \ V$ $AC$ is applied to the primary,the output from the secondary will be......$V$.

In a step-down transformer,the number of turns in:

The output voltage of a transformer connected to a $220 \, V$ line is $1100 \, V$ at a $1 \, A$ current. Its efficiency is $100 \%$. The current coming from the line is ........ $A$.

An $AC$ source of internal resistance $10^3 \Omega$ is connected to a transformer. The ratio of the number of turns in the primary to the number of turns in the secondary to match the source to a load resistance of $10 \Omega$ is

An ideal transformer is used to step up an alternating e.m.f. of $220 \,V$ to $4.4 \,kV$ to transmit $6.6 \,kW$ of power. The primary coil has $100$ turns. What is the current rating of the secondary coil (in $\,A$)?

Vedclass Test Series

Exam Paper Generator

Online Exam Module