The coils of a step-down transformer have 500 | vedclass

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

Question

(C) For a step-down transformer, the number of turns in the primary coil $N_P$ is greater than the number of turns in the secondary coil $N_S$. Given:

Vedclass · Accepted Answer

$40 \,A, 220 \,V$

Vedclass · Answer

(C) For a step-down transformer, the number of turns in the primary coil $N_P$ is greater than the number of turns in the secondary coil $N_S$. Given: $N_P = 5000$, $N_S = 500$, $I_P = 4 \,A$, and $V_P = 2200 \,V$.Using the transformer ratio formula: $\frac{N_S}{N_P} = \frac{V_S}{V_P} = \frac{I_P}{I_S}$.First, calculate the secondary voltage $V_S$:$V_S = V_P 	imes \frac{N_S}{N_P} = 2200 	imes \frac{500}{5000} = 220 \,V$.Next, calculate the secondary current $I_S$ using the relation $\frac{V_S}{V_P} = \frac{I_P}{I_S}$:$I_S = I_P 	imes \frac{V_P}{V_S} = 4 	imes \frac{2200}{220} = 40 \,A$.Thus, the current is $40 \,A$ and the potential difference is $220 \,V$.

The coils of a step-down transformer have $500$ and $5000$ turns. In the primary coil, an $AC$ current of $4 \,A$ at $2200 \,V$ is sent. The value of the current and potential difference in the secondary coil is:

Similar Questions

$A$ transformer connected to a $220 \, V$ line shows an output of $2 \, A$ at $11000 \, V$. The efficiency is $100 \%$. The current drawn from the line is ...... $A$.

$A$ current of $5 \text{ A}$ is flowing at $220 \text{ V}$ in a primary coil of a transformer. If the voltage produced in the secondary coil is $2200 \text{ V}$ and $50 \%$ of power is lost, then the current in the secondary coil will be (in $\text{ A}$)

$A$ step-down transformer converts transmission line voltage from $11000 \, V$ to $220 \, V$. The primary of the transformer has $6000 \, \text{turns}$ and the efficiency of the transformer is $60 \%$. If the output power is $9 \, kW$, then the input power will be ........ $kW$.

$A$ transformer has $20$ turns in the primary and $100$ turns in the secondary coil. An $AC$ voltage of $V_{\text{in}} = 600 \sin 314t$ is applied to the primary terminal of the transformer. The maximum value of the secondary output voltage obtained in volts is:

$A$ transformer is employed to reduce $220\, V$ to $11\, V$. The primary draws a current of $5\, A$ and the secondary $90\, A$. The efficiency of the transformer is......$\%$

Vedclass Test Series

Exam Paper Generator

Online Exam Module