In the figure shown,the power generated in y | vedclass

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

Question

(D) According to the Maximum Power Transfer Theorem,the power delivered to a variable load resistance $y$ is maximum when the load resistance equals t

Vedclass · Accepted Answer

$3\,\Omega$

Vedclass · Answer

(D) According to the Maximum Power Transfer Theorem,the power delivered to a variable load resistance $y$ is maximum when the load resistance equals the Thevenin equivalent resistance of the circuit as seen from the terminals of $y$.In the given circuit,the internal resistance of the battery is $r = 2\,\Omega$ and it is in series with the fixed resistor $R$. The total resistance of the circuit excluding the variable load $y$ is $R_{eq} = R + r = R + 2\,\Omega$.For maximum power in $y$,we must have $y = R_{eq}$.Given that $y = 5\,\Omega$ for maximum power,$5\,\Omega = R + 2\,\Omega$$R = 5\,\Omega - 2\,\Omega = 3\,\Omega$.

In the figure shown,the power generated in $y$ is maximum when $y = 5\,\Omega$. Then $R$ is

Similar Questions

An electric room radiator which operates at $225\, V$ has a resistance of $50\, \Omega$. The power of the radiator is approximately ............... $W$.

$A$ cell of internal resistance $r$ drives current through an external resistance $R$. The power delivered by the cell to the external resistance will be maximum when:

$A$ heater draws a current of $2\,A$ when connected to a $250\,V$ source. The rate of energy dissipation is ............. $W$.

The ratio of cross-sectional areas of two conducting wires made up of the same material and having the same length is $1 : 2$. What will be the ratio of heat produced per second in the wires,when the same current is flowing in them?

Two bulbs are rated $(40 \; W, 200 \; V)$ and $(100 \; W, 200 \; V)$. What is the correct relation for their resistances?

Vedclass Test Series

Exam Paper Generator

Online Exam Module