The circuit shown contains a 12 , V battery,a | vedclass

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

Question

(B) $1$. Analyze the orientation of the diodes: The positive terminal of the $12 \, V$ battery is connected to the top rail. Diode $D_1$ is connected

Vedclass · Accepted Answer

$2$

Vedclass · Answer

(B) $1$. Analyze the orientation of the diodes: The positive terminal of the $12 \, V$ battery is connected to the top rail. Diode $D_1$ is connected such that its cathode is towards the top rail,making it reverse-biased. Diode $D_2$ is connected such that its anode is towards the top rail,making it forward-biased.$2$. Since the diodes are ideal,the branch with $D_1$ acts as an open circuit (no current flows through the $3 \, \Omega$ resistor).$3$. The branch with $D_2$ acts as a short circuit (zero resistance),so the current flows through the $4 \, \Omega$ resistor and the $2 \, \Omega$ resistor in series.$4$. The total resistance of the circuit is $R_{eq} = 4 \, \Omega + 2 \, \Omega = 6 \, \Omega$.$5$. Using Ohm's law,the total current $I$ is $I = \frac{V}{R_{eq}} = \frac{12 \, V}{6 \, \Omega} = 2 \, A$.

Similar Questions

The venous system of a frog differs from that of a rabbit in having:

When a wave traverses a medium,the displacement of a particle located at $x$ at a time $t$ is given by $y = a \sin (bt - cx)$,where $a, b,$ and $c$ are constants of the wave. Which of the following is a quantity with dimensions?

In a series $LCR$ circuit,what will be the nature of the circuit for frequencies higher than the resonance frequency?

The sum of the last eight coefficients in the expansion of $(1 + x)^{15}$ is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module